Fire and Acoustic Guide - BGC

MARCH / 2013 

BGC PLASTERBOARD 

FIRE & ACOUSTIC 

GUIDE 

Australian Owned & Manufactured 

www.bgc.com.au/plasterboard www.bgcinnovadesign.com.au

The BGC Plasterboard Fire and Acoustic Guide has been 

designed to assist architects, specifiers, designers, builders 

and contractors in the selection of the correct system for 

projects when fire and acoustic properties are required. 

Each of the systems in this Guide has been given a 

unique system number to help with ease of identification. 

A quick reference guide to these numbers is noted further 

in the Guide. 

The data contained in this Guide meets all Australian 

standards and is correct at the time of publication. 

SAFETY 

In normal circumstances there are no known 

health hazards when using or applying 

plasterboard. However, BGC Plasterboard 

recommends that the following precautions 

are followed. 

Avoid creating dust when handling BGC 

Plasterboard or plasterboard products. BGC 

Plasterboard suggests that P1 or P2 particulate 

respirator (dust mask), which comply with 

Australian and New Zealand Standard AS/NZS 

1715: Selection, Use and Maintenance of 

Respiratory Protective Devices, and Australian 

and New Zealand Standard AS/NZS 1716: 

Respiratory Protective Devices when Exposed 

to Dust), be used at all times. 

FIRST AID 

Eyes Flush with clean water for 15 minutes. 

Seek medical attention if irritation persists. 

Skin Wash with mild soap and water. 

Seek medical attention if irritation persists. 

Inhalation Drink plenty of water. 

Seek medical attention. 

Material Safety Data Sheets for BGC Plasterboard 

and BGC Fibre Cement products are available at 

any BGC state office or the BGC website 

www.bgc.com.au/plasterboard 

www.bgcinnovadesign.com.au 

INTRODUCTION TO BGC PLASTERBOARD 

FIRE AND ACOUSTIC GUIDE 

CERTIFICATION DETAILS 

All systems in the BGC Plasterboard Fire and 

Acoustic Guide have been assessed to meet 

all requirements of Australian Standards and 

the Building Code of Australia. 

Acoustic testing has been carried out to 

Australian Standards. 

The acoustic testing has been carried out by 

the following institutions: 

• Royal Melbourne Institute of Technology (RMIT) 

• CSIRO 

The fire testing has been carried out to Australian 

Standard AS1530 – part 4 ‘Fire and Resistance 

Tests of Elements of Building Construction’ and 

were carried out by: 

• CSIRO 

• Exova Warringtonfire Aus Pty Ltd. 

Fire and acoustic test reports and opinions can 

be obtained upon request. The systems detailed 

in this Guide and their warranties are only valid if 

constructed in accordance with BGC Plasterboard 

or BGC Fibre Cement installation methods and 

using only BGC Plasterboard or BGC Fibre 

Cement products. 

BGC manufactures plasterboard and fibre cement 

products under the rigorous Quality Management 

System of the International Standard ISO 9001:2008 

and is the holder of Licence Agreement numbers 

QEC 2955/13 and QEC 29633. 

BGC FIRE & ACOUSTIC / MARCH 2013 

01 / GENERAL INFORMATION 

1

BGC FIRE & ACOUSTIC / MARCH 2013 01 / GENERAL INFORMATION 

2 

BGC PRODUCTS 

BGC PLASTERBOARD 

PRODUCT & 

THICKNESS mm 

PLASTERBOARD 

10mm 

PLASTERBOARD 

13mm 

CEILINGBOARD 

13mm 

WATER RESISTANT 

PLASTERBOARD 10mm 


PLASTERBOARD 13mm 

FIREBOARD 

13mm 

FIREBOARD 

16mm 

CURVEBOARD TM 

6.5mm 

SOUNDBOARD TM 

10mm 

SOUNDBOARD TM 

13mm 

WET AREA FIREBOARD 

13mm 

WET AREA FIREBOARD 

16mm 

IMPACTBOARD 

13mm 

BGC ENVIROBOARD 

COMMERCIAL 

BGC ENVIROBOARD 

ULTIMATE 

WEIGHT 

KG/M² 

7.00 

9.00 

7.20 

7.80 

9.40 

10.60 

12.70 

4.20 

9.00 

12.50 

10.60 

12.60 

11.50 

9.50 

10.60 

COMPOUNDS 

PRODUCT 

Stud Adhesive 

Stud Adhesive 

Multi Purpose Joint Compound 

Multi Purpose Joint Compound 

Water Resistant Taping Cement 

Water Resistant Taping Cement 

Lightweight All Purpose Compound 

Top Coat 

Base Coat 45 

Base Coat 60 

Base Coat 60 

Base Coat 60 

Base Coat 90 

Cornice Cement 45 





Masonry Adhesive 

Back Blocking Cement 

Exterior and Wet Area Base Coat 

Exterior and Wet Area Top Coat 

Fibreglass Tape 

Fibreglass Tape 

WIDTH 

mm 

1200 

1350 

1200 

1350 

1200 

1350 

1200 

1350 

1200 

1350 

1200 

1200 

1200 

1200 

1350 

1200 

1200 

1200 

1200 

1200 

1200 

LENGTH mm 

2400 2700 3000 3600 4200 4800 5400 6000 

x x x 

x 

x 

x 

x 

x 

x 

x 

x x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x x x x x 

x 

BUCKET/BAG SIZE 

1.25kg 

5.2kg 

6kg 

20kg 

1.65kg 

6.4kg 

15kg 

20kg 

20kg 

5kg 

10kg 

20kg 

20kg 

20kg 

5kg 

10kg 

20kg 

20kg 

20kg 

20kg 

12kg 

13kg 

50mm x 20m 

50mm x 90m 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x

PRODUCT & 

THICKNESS mm 

DURASHEET TM 4.5mm 

DURASHEET TM 6.0mm 

DURAPLANK TM 

7.5MM SMOOTH AND 

WOODGRAIN 

DURAPLANK TM 7.5mm 

RUSTICATED 

NULINE TM PLUS 14.0mm 

DURATEX TM 7.5mm 

DURATEX TM 9.0mm 

DURALATTICE TM 6.0mm 

DURAGRID TM 9.0mm 

DURACOM TM 9.0mm 

DURACOM TM 12.0mm 

DURASCAPE TM 9.0mm 

DURAGROOVE TM 9.0mm 

COMPRESSED 15.0mm 



DURALINER TM 6.0mm 



DURALUX TM 4.5mm 

DURALUX TM 6.0mm 

*DURALUX TM 9.0mm 

CTU 6.0mm 

VCU 5.0mm 

STONESHEET TM 9.0mm 

* Available only in 

Queensland 

WEIGHT 

KG/M² 

7.58 

10.00 

2.90 

3.80 

2.50 

4.83 

4.13 

12.5 

15.38 

7.69 

11.70 

16.95 

22.73 

12.50 

12.50 

28.57 

34.48 

47.62 

10.00 

15.38 

19.00 

7.4 

9.52 

15 

9.52 

8.33 

15.38 

WIDTH 

mm 

1200 

900 

750 

600 

450 

1200 

900 

300 

230 

205 

205 

175 

1200 

900 

1200 

1200 

900 

2990 

1190 

890 

590 

1200 

900 

1200 

1200 

900 

1200 

1200 

900 

1200 

900 

1200 

900 

1200 

1350 

1200 

1350 

1200 

1200 

900 

1200 

900 

1200 

1200 

900 

900 

1200 

1190 1200 1500 1790 1800 2100 2390 2400 2440 2450 2700 2725 2750 3000 3600 4200 4800 5400 6000 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

LENGTH mm 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

BGC PRODUCTS 

BGC FIBRE CEMENT 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 

x 



3


4 

QUICK REFERENCE GUIDE 

STEEL FRAME - SINGLE STUD 

SIDE 1 SIDE 2 FRL SYSTEM NUMBER PAGE NUMBER 

1 x 10mm BGC Plasterboard 1 x 10mm BGC Plasterboard -/-/- S001 27 




1 x 10mm BGC Soundboard TM 1 x 10mm BGC Soundboard TM -/-/- S006 28 


2 x 10mm BGC Soundboard TM 1 x 10mm BGC WR Plasterboard -/-/- S009 29 


1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 S011 29 

1 x 13mm BGC Fireboard 

1 x 10mm BGC Plasterboard 1 x 13mm BGC Fireboard -/60/60 S012 30 


1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard -/60/60 60/60/60 S019 30 


2 x 16mm BGC Fireboard 2 x 16mm BGC Fireboard -/120/120 90/90/90 S023 31 

3 x 13mm BGC Fireboard 3 x 13mm BGC Fireboard - /120/120 S025 31 


1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- S027 32 



1 x 10mm BGC Soundboard TM 1 x 6mm BGC Duraliner TM -/-/- S031 33 

1 x 13mm BGC Plasterboard 1 x 6mm BGC Duraliner TM -/-/- S033 33 

1 x 13mm BGC Plasterboard 1 x 9mm BGC Duraliner TM -/-/- S034 34 

1 x 13mm BGC Fireboard 1 x 6mm BGC Duraliner TM -/-/- S035 34 

1 x 16mm BGC Fireboard (against studs) 1 x 16mm BGC Fireboard (against studs) 

1 x 9mm BGC Duraliner TM 1 x 9mm BGC Duraliner TM -/60/60 S041 34 

1 x 9mm BGC Duraliner TM (against studs) 1 x 9mm BGC Duraliner TM (against studs) 

1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 120/120/120 S043 35 

2 x 16mm BGC Wet Area Fireboard 2 x 16mm BGC Wet Area Fireboard -/180/180 S044 35 

----- 3 x 16mm BGC Wet Area Fireboard -/120/120 120/120/120 S045 36 

----- 2 x 16mm BGC Fireboard -/60/60 S046 36 

----- 3 x 16mm BGC Fireboard -/120/120 120/120/120 - S048 36 


STEEL FRAME - STAGGERED STUD 


1 x 10mm BGC Plasterboard 1 x 10mm BGC Plasterboard -/-/- SS001 37 

1 x 13mm BGC Plasterboard 1 x 13mm BGC Plasterboard -/-/- SS002 37 

1 x 10mm BGC Soundboard TM 1 x 10mm BGC Soundboard TM -/-/- SS006 37 



1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 SS011 38 


1 x 13mm BGC Plasterboard 1 x 13mm BGC Fireboard -/60/60 SS014 39 








1 x 9mm Duraliner TM 1 x 9mm BGC Duraliner TM -/-/- SS028 41 

2 x 10mm BGC Soundboard TM 1 x 6mm BGC Duraliner TM -/-/- SS032 41 

1 x 13mm BGC Plasterboard 1 x 6mm BGC Duraliner TM -/-/- SS033 42 

1 x 13mm BGC Plasterboard 1 x 9mm BGC Duraliner TM -/-/- SS034 42 

1 x 13mm BGC Fireboard 1 x 6mm BGC Duraliner TM -/-/- SS035 42 

1 x 9mm BGC Duraliner TM 1 x 16mm BGC Fireboard -/-/- SS036 43 


1 x 9mm BGC Duraliner TM 1 x 9mm BGC Duraliner TM -/60/60 SS041 43 


1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 120/120/120 SS043 43


1 x 10mm BGC Plasterboard 1 x 10mm BGC Plasterboard -/-/- SD001 44 

1 x 13mm BGC Plasterboard 1 x 13mm BGC Plasterboard -/-/- SD002 44 

1 x 10mm BGC Soundboard TM 1 x 10mm BGC Soundboard TM -/-/- SD006 44 

1 x 13mm BGC Soundboard TM 1 x 13mm BGC Soundboard TM -/-/- SD007 45 

1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 SD011 45 



1 x 10mm BGC Plasterboard 1 x 10mm BGC Plasterboard -/-/- T001 55 




1 x 10mm BGC Soundboard TM 1 x 10mm BGC Soundboard TM -/-/- T006 56 


1 x 10mm BGC Soundboard TM 1 x 10mm BGC WR Plasterboard -/-/- T008 57 


1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 60/60/60 T011 57 

1 x 13mm BGC Plasterboard 1 x 10mm BGC Plasterboard 


STEEL FRAME - DOUBLE STUD 

1 x 10mm BGC Plasterboard 1 x 10mm BGC Plasterboard -/60/60 SD016 45 

1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard -/60/60 60/60/60 SD019 46 

2 x 13mm BGC Fireboard 2 x 13mm BGC Fireboard -/120/120 90/90/90 SD021 46 





1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- SD027 48 

1 x 9mm BGC Duraliner TM 1 x 9mm BGC Duraliner TM -/-/- SD028 48 


1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/60/60 SD038 48 




1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 120/120/120 SD043 49 


STEEL FRAME - CINEMA WALL 


3 x 16mm BGC Fireboard 3 x 16mm BGC Fireboard 120/120/120 SC001 50 

4 x 16mm BGC Fireboard 4 x 16mm BGC Fireboard 120/120/120 SC002 50 


TIMBER FRAME - SINGLE STUD 

1 x 13mm BGC Fireboard -/-/- T015 58 

1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard -/60/60 60/60/60 T019 58 

2 x 13mm BGC Fireboard 2 x 13mm BGC Fireboard -/120/120 T021 58 

2 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 60/60/60 T022 59 



1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- T027 60 

1 x 10mm BGC Soundboard TM (against studs) 1 x 10mm BGC Soundboard TM (against studs) 

1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- T037 60 





2 x 16mm BGC Wet Area Fireboard 2 x 16mm BGC Wet Area Fireboard -/180/180 T044 61 

----- 2 x 16mm BGC Fireboard -/60/60 T046 61 

----- 3 x 16mm BGC Fireboard -/90/90 T048 62 



5


6 


TIMBER FRAME - STAGGERED STUD 


1 x 10mm BGC Soundboard TM 1 x 10mm BGC Soundboard TM -/-/- TS006 63 

2 x 10mm BGC Soundboard TM 2 x 10mm BGC Soundboard TM -/-/- TS010 63 

1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 TS011 63 




1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- TS027 65 

1 x 9mm BGC Duraliner TM 1 x 9mm BGC Duraliner TM -/-/- TS028 65 

1 x 6mm BGC Duraliner TM 1 x 10mm BGC Plasterboard -/-/- TS030 65 

1 x 6mm BGC Duraliner TM 1 x 10mm BGC Soundboard TM -/-/- TS031 66 


1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard 60/60/60 TS039 66 


1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM 60/60/60 TS040 66 


1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 90/90/90 TS042 67 


TIMBER FRAME - DOUBLE STUD 


1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard -/60/60 TD011 68 

1 x 13mm BGC Plasterboard (against studs)1 x 13mm BGC Plasterboard (against studs) 


1 x 10mm BGC Plasterboard (against studs)1 x 10mm BGC Plasterboard (against studs) 


1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard -/60/60 60/60/60 TD019 69 




1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM -/-/- TD027 70 

1 x 9mm BGC Duraliner TM 1 x 9mm BGC Duraliner TM -/-/- TD028 70 


1 x 13mm BGC Fireboard 1 x 13mm BGC Fireboard 60/60/60 TD039 71 


1 x 6mm BGC Duraliner TM 1 x 6mm BGC Duraliner TM 60/60/60 TD040 71 


1 x 16mm BGC Fireboard 1 x 16mm BGC Fireboard 90/90/90 TD042 71


EXTERIOR WALL - TIMBER STUD 


1 x 16mm BGC Wet Area Fireboard 1 x 10mm BGC Plasterboard 60/60/60 TE001 75 

1 x 7.5mm Duratex TM 




1 x 9mm Duragrid TM 




1 x 9mm Duracom TM 




1 x 14mm Nuline TM Plus 




1 x 9mm Durascape TM 




1 x 9mm Duragroove TM 



EXTERIOR WALL - STEEL STUD 


1 x 16mm BGC Wet Area Fireboard 1 x 16mm BGC Fireboard 60/60/60 SE001 79 


























7


8 


FLOOR / CEILING - TIMBER OR STEEL JOISTS 

CEILING LINING FRL SYSTEM NUMBER PAGE NUMBER 

1 x 13mm BGC Plasterboard -/-/- C001 85 


1 x 10mm BGC Ceilingboard -/-/- C003 85 

2 x 10mm BGC Soundboard TM -/-/- C004 86 

1 x 13mm BGC Fireboard (against frame) 

1 x 16mm BGC Fireboard 90/90/90 C005 86 

1 x 16mm BGC Fireboard -/-/- C0018 86 




FLOOR / CEILING - TIMBER OR STEEL JOISTS WITH FURRING CHANNELS 


1 x 10mm BGC Ceilingboard -/-/- C010 88 


1 x 6mm BGC Duraliner TM (furring channel at 450mm max centres) -/-/- C012 88 

1 x 9mm BGC Duraliner TM -/-/- C013 89 






QUICK REFERENCE GUIDE FLOOR / CEILING - TIMBER OR STEEL 

JOISTS WITH FURRING CHANNELS & ACOUSTIC RESILIENT MOUNTS 










ROOF/CEILING - TIMBER TRUSSES 




1 x 13mm BGC Plasterboard TM -/-/- C032 93 






3 x 16mm BGC Fireboard 120/120/120 C036 95


ROOF/CEILING - TIMBER TRUSSES WITH FURRING CHANNELS 





1 x 6mm BGC Duraliner TM (furring channels at 450mm max centres) -/-/- C043 97 





QUICK REFERENCE GUIDE ROOF/CEILING - 

TIMBER TRUSSES WITH FURRING CHANNELS & RESILIENT MOUNTS 









COLUMNS & BEAMS 

LINING FRL SYSTEM NUMBER PAGE NUMBER 

1 x 13mm BGC Fireboard 30/-/- CB01 103 













9


STRUCTURE OF 

WALLS & CEILINGS 

STRUCTURE 

STEEL FRAME DESIGN 

AS 1170, Structural design actions – General 

principles defines the loads that steel framed walls are 

subjected to. Steel framed wall and ceiling systems 

must be designed according to the relevant standard: 

• AS 4100, Steel Structures 

• AS/NZS 4600, Cold Formed Steel Structures 

• AS 3623, Domestic Metal Framing 

• AS/NZS 2785, Suspended Ceilings. 

• Ensure fasteners used to fix top and bottom 

track are appropriate for the Uniform Distributed 

Loads (UDL) on walls. 

• At 600mm fastener centres and a UDL of 

0.25kPa, the fasteners must withstand a shear 

load of 0.75kN. 

• At 600mm fastener centres and a UDL of 

0.35kPa, the fasteners must withstand a shear 

load of 1.1kN. 

EXTERIOR WALLS AND CEILINGS 

Frame design of exterior wall systems must consider: 

INTERIOR WALLS AND CEILINGS 

All interior wall systems and wall height tables 

published in this Guide comply with the relevant 

section of BCA Specification C1.8. 

• Local environmental loading conditions 

(Refer to AS 1170, Structural Design Actions – 

General Principles) 

• Applied vertical load on the studs. 

01 / GENERAL INFORMATION 10 

• Height tables for non-fire rated walls have been 

calculated by Rondo Building Services. 

As a minimum, all interior wall systems published 

in this Guide comply with the deflection under 

Uniformly Distributed Load (UDL) requirements 

from BCA Specification C1.8. That is, the allowable 

deflection under a static pressure of 0.25kPa must 

be less than either: 

• Wall height ÷ 240, or 

• 30mm. 

Some applications have additional requirements 

such as the walls of shafts and fire isolated exits. 

Unusually strong wind loading conditions such as those 

experienced in tall buildings may require interior walls and 

ceilings to be designed to higher pressures than 

the standard 0.25kPa. (Refer to BCA) 

Stud Depth 

70mm 

90mm 

120mm 

TIMBER STUD HEIGHTS 

Timber Grade 

F5 

F8 

F11 

F5 

F8 

F11 

F5 

F8 

F11 

CONTROL JOINTS 

Control joints allow for any building movement 

resulting from influences such as moisture migration, 

loading, structural movement and foundation 

settlement. Cracks in plasterboard and plasterboard 

joints can be eliminated by using control joints and the 

correct installation techniques. Control joints must 

be installed in plasterboard walls and ceilings at: 

• Maximum 12 metre intervals 

• Control joints in the structure 

• Any change in the substrate material. 

Distance between control joints may need to be 

reduced to less than 12 metres due to conditions 

such as large temperature or humidity variations. 

600mm 450mm 

Max Wall Height (m) 

3.1 

3.4 

3.4 

3.7 

3.4 

3.8 

3.7 

4.1 

3.6 

3.9 

3.9 

4.3 

4.0 

4.4 

4.4 

4.8 

4.4 

4.9 

4.8 

5.2 

4.6 

5.1 

4.8 

5.4 

5.4 

5.8 

5.8 

5.9 

5.9 

6.0 

6.0 

6.0 

6.0 

6.0 

6.0 

6.0 

Noggings in timber stud walls must be spaced at 1350mm max centres and must not protrude past the wall framing surface 

SCREW FIXINGS FOR SOFT WOOD TIMBER AND LIGHTWEIGHT STEEL FRAMING 

Framing 

Soft Wood Timber 

Lightweight Steel up to 

0.8mm thick 

Lightweight Steel from 

0.8mm to 1.6mm thick 

Fireboard Thickness 

13mm 

16mm 

13mm 

16mm 

13mm 

16mm 

Stud Thickness 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

35mm 

45mm 

Screw Type 

No.6 Type ‘W’ 

No.6 Type ‘W’ 

No.6 Type ‘S’ Needle Point 

No.6 Type ‘S’ Needle Point 

No.6 Type ‘D’ Drill Point 

No.6 Type ‘D’ Drill Point 

1st Layer 

32mm 

45mm 

25mm 

30mm 

32mm 

32mm 

Stud spacing 

Screw Length 

2nd Layer 

50mm 

65mm 

45mm 

45mm 

45mm 

45mm 

3rd Layer 

65mm 

75mm 

50mm 

65mm 

65mm 

65mm

Table 1: 0.25kPa - NON LOAD BEARING WALLS 

WALL FRAME 

AND LINING 

CONFIGURATION 

600mm CENTRES 

LINED BOTH SIDES 

600mm CENTRES 

ONE SIDE 

STAGGERED STUDS 

BOXED 


Table 2: 0.35kPa - NON LOAD BEARING WALLS 

WALL FRAME 

AND LINING 

CONFIGURATION 

600mm CENTRES 

LINED BOTH SIDES 

600mm CENTRES 

ONE SIDE 


BOXED 


Table 3: NOGGING REQUIREMENTS 

LINING 

CONFIGURATION 

LINED 

BOTH SIDES 

LINED 

ONE SIDE 


STUD SIZE 

BMT 

LININGS (mm) 

10 

13 

16 

(-/180/180) 

10 

13 

16 

10 

10 

STUD SIZE 

BMT 

LININGS (mm) 

10 

13 

16 

(-/180/180) 

10 

13 

16 

10 

10 

WALL 

HEIGHT 

0 - 4400 

4400 - 8800 

0 - 3000 

3000 - 6000 

6000 - 8000 

All 

51 

0.5 0.75 

2770 2910 

3200 3320 

3380 3520 

2310 2620 

2310 2620 

2310 2620 

51 

0.5 0.75 

2420 2550 

2810 2920 

3000 3120 

2070 2340 

2070 2340 

2070 2340 

NO. OF 

NOGGINGS 

0 

1 

1 

2 

3 

0 

STEEL STUD HEIGHTS - 

NON LOAD BEARING WALLS 

64 

76 

92 

0.5 0.75 1.15 0.55 0.75 1.15 0.55 0.75 1.15 

MAXIMUM WALL HEIGHT (mm) 

3330 3920 4160 3710 4420 4650 4550 4830 5110 

3720 4210 4420 4140 5010 5220 4950 5500 5750 

3910 4340 4510 4300 5250 5420 5190 5710 5930 

2720 3130 3520 

2720 3240 3570 

2750 3270 3590 

2230 2740 3300 

2710 3360 4160 

64 

76 

92 

0.5 0.75 1.15 0.55 0.75 1.15 0.55 0.75 1.15 

MAXIMUM WALL HEIGHT (mm) 

2930 3480 3700 3260 *3880 *4090 *4030 *4220 *4480 

3290 3740 3930 3650 4420 4600 4400 4840 5060 

3450 3830 3990 3790 4610 4770 4610 5010 5200 

2430 2800 3150 

2430 2880 3170 

2430 2900 3180 

2020 2470 2960 

2490 3040 3710 

3230 3590 4060 

3260 3830 4060 

3260 3880 4060 

Notes to Tables: Information provided by Rondo Building Services 

and as such the performances detailed are limited to the Rondo range of products 

Deflection limited to the lesser of H/240 or 30mm, in accordance with the BCA Specification C1.8 

All walls are non load bearing, except for self weight 

Table 1 loadings: Pultimate = 0.375kPa, Pservice = 0.25kPa 

Table 2 loadings: Pultimate = 0.525kPa, Pservice = 0.35kPa 

All loadings in accordance with AS1170:2002 

Walls analysed in accordance with AS/NZS4600 

Noggings are to be installed as per Table 3 

Staggered stud walls have been checked based on zero noggings, and assumed 92mm tracks 

Tables have been prepared by Rondo Building Services Pty Ltd 

The design pressures are not suitable for external wall applications 

The wall heights assume the stud and track sections are of the same, or similar, gauge 

Wall heights do not consider connection capacity, which should be checked as per Table 4 

*Green highlights indicate wall height may be limited by plasterboard linings 

3740 4160 4710 

3740 4210 4710 

3740 4220 4710 

150 

0.75 1.15 

*6600 *7230 

7030 7530 

7220 7650 

5300 *6800 

5300 6800 

5290 6800 

150 

0.75 1.15 

Table 4: WALL HEIGHT LIMITS BASED ON WALL LININGS 

LINING 

CONFIGURATION 

LINED 

BOTH SIDES 

LINED 

ONE SIDE 


2890 3210 3630 

2890 3380 3630 

2890 3420 3630 

WALL 

HEIGHT 

1 x 10mm 

1 x 13mm 

1 x 16mm 

0.50/0.55BMT 

1 x 10mm 

1 x 13mm 

1 x 16mm 

1 x 10mm 

3340 3720 *4210 

3340 3720 4210 

3340 3720 4210 

MAX WALL HEIGHTS 

0.25kPa 0.35kPa 

5330 

8000 

12000 

5330 

5330 

8000 

10000 

5330 

*5840 *6420 

*6250 *6780 

6410 6910 

*4790 *6210 

4790 *6210 

4780 6210 

3800 

5710 

8570 

3800 

3800 

5710 

7140 

3800 



11


12 

ENVIRONMENTAL 

INFORMATION 

BGC Plasterboard shares the general community 

concern for the environment and seeks to reduce its 

environmental footprint in all aspects of its 

operations. 

Natural gypsum, the principal ingredient of 

BGC’s plasterboard products is mined locally at 

Cape Cuvier, Western Australia, which is renowned 

for having some of the highest purity gypsum in 

the world. 

BGC Plasterboard has set prudent environmental 

targets for waste minimisation and energy and 

water use, and is an active participant in 

environmental reporting through the Energy 

Efficiency, Waterwise and Emissions reporting 

programs. 

Through strict quality control systems, production 

waste is minimised and wastage is recycled 

back into new plasterboard. 

GOOD ENVIRONMENTAL CHOICE AUSTRALIA 

Good Environmental Choice Australia is an environmental 

labelling program which aims to provide consumers with 

the knowledge that the product they are purchasing has 

met certain environmental performance standards which 

have been developed and assessed in line with 

International labelling standards. 

PRODUCT 

PLASTERBOARD 

CEILINGBOARD 

WATER RESISTANT BOARD 

SOUNDBOARD TM 

FIREBOARD 


FIREBOARD 

IMPACTBOARD 

CURVEBOARD TM 

APPLICATION 

Scientifically recognised benchmarks for environmental 

performance have been developed against which 

products and services are assessed and evaluated to 

determine whether the product or service should be 

awarded the Good Environmental Choice Label. 

All BGC Plasterboard products have been certified 

by GECA which means that the products and their 

manufacturing environment have been evaluated 

and deemed to comply with the strict guidelines 

set by GECA. 

GECA certification is recognised by the Green Building 

Council of Australia and may assist in achieving up to 

3 Green Star points. 

BGC-2011 

GECA 04-2011v2- 

PANEL BOARDS 

• Interior Wall lining system 

• Suitable for residential & commercial applications 

• Cost Effective 

• Ready for decoration 

• Quick and simple to install 

• Excellent acoustic performance 

• Interior ceiling lining system 

• Suitable for residential and commercial applications 

• Cost effective 


• Specifically designed for wet areas 

• Has a low absorption core 

• Light blue face for ease of identification 


• Eliminates or greatly reduces unwanted noise travelling between rooms 

• Has a higher density core than standard plasterboard 

• Is ideal for upgrading the acoustic performance of existing walls or ceilings 

• Is lightweight and easy to install 

• Installation and handling is similar to that of standard board 

• Higher resistance to fire than standard plasterboard 

• Suitable for interior walls and ceilings 

• Suitable for fire isolated exits and public corridors 


• Has a light pink face for ease of identification 

• Designed for wet areas where FRL is required 

• Ideal in partitioning situations 

• Can be used in ceilings if required 


• Specifically designed for high impact areas 

• Suitable for residential & commercial applications 

• High resistance to soft body impact 

• Reduced indentations from hard body impact 

• Equivalent acoustic performance to BGC Soundboard 

• Stronger than standard 13mm plasterboard 

• Same installation as standard plasterboard 

• Easy to join and finish 

• Easy to repair 

• Provides design flexibility and freedom 

• Enables construction of contoured walls or ceilings 

• Allows bending to small radii 

• Has recessed edges on long edges to provide a continuous surface once flushed 

• Saves time and money on installation requiring curved surfaces 

• Lightweight and easy to install 

• Can be easily applied to timber or light-steel framing 

• Can be easily finished in a number of finishes

BOUNDARY/EXTERIOR WALLS 

Certain BGC Fibre Cement products when used in 

conjunction with 16mm Wet Area Fireboard can achieve 

both 60/60/60 and 90/90/90 FRL (Fire Resistance Level) 

fire ratings from the outside as required by the BCA. 

Where an exterior wall is required to achieve 60/60/60 

FRL from the outside, 1 layer of 16mm Wet Area 

Fireboard installed with certain BGC Fibre Cement 

products over the Wet Area Fireboard will meet minimum 

BCA requirements. 

Similarly 2 layers of 16mm Wet Area Fireboard used 

in conjunction with certain BGC Fibre Cement products 

will achieve 90/90/90 from the outside. 

There are 6 BGC Fibre Cement products that can be 

used in conjunction with 16mm Wet Area Fireboard to 

achieve the fire ratings required for boundary/exterior 

walls. These are: 

• 7.5mm Duratex TM 

• 9.0mm Duragrid TM 

• 9.0mm Duracom TM 

• 9.0mm Durascape TM 

• 9.0mm Duragroove TM 

• 14.0mm Nuline TM Plus 

NOTE: All exterior walls must have sarking beneath 

the BGC Fibre Cement products. No adhesives are to 

be used when installing Wet Area Fireboard and the 

BGC Fibre Cement products. Nails or screws must 

be used. 

EXTERIOR WALLS/ 

BUSHFIRE INFORMATION 

BUSHFIRE INFORMATION 

AS3959:2009 sets out a series of Bushfire threat levels 

to buildings described as BAL (Bushfire Attack Levels) 

as follows: 

BAL-Low, BAL-12.5, BAL-19, BAL-29, BAL-40 or 

BAL-FZ (Flamezone). 

BGC Fibre Cement and BGC Plasterboard products 

are eminently suited for both bushfire and boundary wall 

applications in residential and multi residential buildings 

when used correctly. 

The chart on the next pages shows the different 

BAL levels that different BGC Fibre Cement and BGC 

Plasterboard products can achieve if installed correctly. 

For detailed Fire and Acoustic results as well as fixing 

sketches for different products, please see the Exterior 

Wall pages in the Fire and Acoustic Data section of this 

guide on pages 75-82. 



13


14 

BUSHFIRE 

MATRIX 

APPLICATIONS 

MATERIALS 

TO ENCLOSE 

SUBFLOOR 

SPACES TO 

BUILDINGS 

EXTERIOR WALLS 

(PARTS LESS THAN 

400MM FROM 

GROUND OR NEAR 

HORIZONTAL 

SURFACE 

(110MM IN 

WIDTH FROM WALL 


(OTHER) 

EAVES LINING 

FASCIAS AND 

BARGEBOARDS 

BAL 12.5 

Durasheet TM 4.5mm 


Duracom TM 9.0mm 


Duratex TM 7.5mm 


Duraplank TM 7.5mm 

Durascape TM 9.0mm 

Duragroove TM 9.0mm 

Nuline TM Plus 14.0mm 








































BAL 19 


















































BAL 29 






































BAL 40 




























BAL FZ>10m 

BGC system - T051 

Exposed side 

7.5mm Duratex TM or 9mm 

Duragrid TM or 9mm/12mm 

Duracom TM or 9mm 

Durascape TM or 9mm 

Duragroove TM or 

14mm Nuline TM Plus 

16mm Wet Area Fireboard 

Unexposed Side 

10mm Plasterboard 

BGC system - T051 

Exposed side 

7.5mm Duratex TM or 9mm 

Duragrid TM or 9mm/12mm 

Duracom TM or 9mm 

Durascape TM or 9mm 

Duragroove TM or 

14mm Nuline TM Plus 

16mm Wet Area Fireboard 

Unexposed Side 

10mm Plasterboard 

BAL FZ

APPLICATIONS 

GABLES (PARTS 

LESS THAT 400MM 

FROM GROUND OR 

NEAR HORIZONTAL 

SURFACE (110MM IN WIDTH 

FROM WALL 

GABLES (OTHER) 

MATERIALS 

TO ENCLOSE 

SUBFLOOR SPACES 

OF VERANDAS, 

DECKS STEPS, 

RAMPS AND 

LANDINGS 

BAL 12.5 





















(over 400mm) 










BAL 19 





















(over 400mm) 










BAL 29 





























BAL 40 



















BAL FZ>10m 

BUSHFIRE 

MATRIX 

BAL FZ


16

SOUND INSULATION 

Every partition has a sound insulation rating. 

A very basic partition may have a sound insulation 

rating of approximately R w 30. A cinema partition on 

the other hand may have a rating of around R w 70. 

BASIC WALL 

S001 

The R w value is the sound insulation rating, for 

airborne sound. STC is another sound insulation 

rating. However STC is no longer in common 

use in Australia. 

A higher R w rating means a better partition for 

sound insulation. Airborne sound insulation ratings 

can range from as low as R w 10 -15 up to values 

of R w 75 and greater. Examples of R w ratings for 

different types of partitions are shown below. 

CONSTRUCTION 

S001 

S010 

SS010 

SD023 

SD025 

R w 30 R w 70 

Typical 

R w 

30 

40 

55 

65 

70 

CINEMA WALL 

SC001 

EG: PARTITIONS 

SEPARATING: 

RETAIL 

TENANCIES 

PRIVATE 

OFFICES 

BOARD 

ROOMS 

APARTMENTS 

CINEMAS 

Sometimes the R w value includes a C tr rating, 

R w + C tr . C tr is a sound insulation rating for 

low-frequency noise, like trucks and stereo 

subwoofers. 

For example, the R w 40 partition below 

has a C tr rating of -10. 

S002 

R w 40 

C tr -10 

R w + C tr 30 

ACOUSTICS 

Here, the combined sound insulation rating 

is R w + C tr 30. 

C tr is a negative number and values typically 

range from about -4 to about -12. The C tr 

rating depends on the mass of the partition. 

A heavier partition will have a smaller C tr rating. 

Choosing the right partition for the job means 

choosing a partition with the right sound insulation 

rating. If acoustics is important for your project, 

we recommend that you contact a qualified 

acoustic consultant for advice. 


17 

02 / ACOUSTIC INFORMATION

BGC FIRE & ACOUSTIC / MARCH 2013 18 

02 / ACOUSTIC INFORMATION 

ACOUSTICS 

BUILDING CODE OF AUSTRALIA: 

WHO, WHAT, WHY AND HOW? 

Who? 

The Building Code of Australia (BCA) sets acoustic 

ratings for residential buildings. 

What? 

The BCA sets acoustic ratings for a range of buildings 

including apartments, hotels, student accommodation 

and aged-care buildings. The acoustic ratings are for 

inter-tenancy walls and floors in these buildings. 

For example, a wall between two apartments should 

have an airborne sound insulation rating of R w +C tr 50. 

Acoustic ratings also apply to entry doors and to 

services such as ducting and water, soil and waste 

pipes in the inter-tenancy walls, floors and riser shafts. 

Why? 

The BCA ratings are a minimum acoustic standard for 

residential buildings. This means that someone living 

in an apartment can expect a reasonable amount of 

acoustic privacy from their neighbours. 

The BCA ratings are a minimum standard. Apartments 

and buildings built to a higher quality level generally 

require walls and floors which exceed BCA standards. 

How? 

Different sound insulation ratings apply to different 

building elements, depending on the rooms being 

separated. In some cases ratings include the C tr . 

Some cases also include a requirement for the partition 

to be discontinuous (see below for further discussion). 

The specific acoustic requirements from the BCA are 

detailed in the table below. 

BCA INTER-TENANCY AIRBORNE SOUND INSULATION REQUIREMENTS 

Inter-tenancy partition 

Wall separating habitable rooms 

such as living areas and bedrooms 

Wall separating wet areas 

such as bathrooms and laundries 

Wall separating a wet area or 

kitchen from a habitable room 

Wall separating a sole-occupancy 

unit from a stairway, public corridor, 

public lobby, etc 

Wall separating a sole-occupancy 

unit from a plant room or lift shaft 

Floor separating 

sole-occupancy units 

Floor separating a sole-occupancy 

unit from a plant room, lift shaft, 

stairway, public corridor, public 

lobby or the like 

Door separating a sole-occupancy 

unit from a public corridor, public 

lobby, etc 

Wall, floor or riser separating a duct, 

soil, waste or water supply pipe from 

a habitable room 

Wall floor or riser separating a duct, 

soil, waste or water supply pipe from 

a wet area or kitchen 

Sound insulation 

R w + C tr ≥ 50 

R w + C tr ≥ 50 

R w + C tr ≥ 50 

R w ≥ 50 

R w ≥ 50 

R w + C tr ≥ 50 

R w + C tr ≥ 50 

R w ≥ 30 

R w + C tr ≥ 40 

R w + C tr ≥ 25 

Notes 

Note: BCA Requirements in Queensland and Northern Territory differ from those stated in the table above. 

BGC recommends further investigation as to BCA requirements in Queensland and Northern Territory. 

Wall impact isolation not required 


Discontinuous construction required 


Discontinuous construction required 

Floor impact isolation criteria 

also apply 

Floor impact isolation treatment 

also required

The figure below shows an example of the type of acoustic performance required to inter-tenancy 

partitions separating two apartments. 

R w + C tr ≥ 50 discontinuous 

R w + C tr ≥ 50 

R w ≥ 50 

KITCHEN 

BEDROOM 

LIVING 

BATHROOM 

CORRIDOR 

BATHROOM 

BEDROOM 

BEDROOM 

Example of BCA performance requirements for different sections of inter-tenancy partitions 

The acoustic performance of the wall depends on 

the type of room on each side of the partition. 

For example, where the wall separates a bedroom or 

living area in one apartment from a wet area such as 

APARTMENT INTER-TENANCY WALL 

Where acoustic amenity is required to exceed 

the BCA minimum performance requirement, 

BGC recommend wall system SD021 for inter-tenancy 

walls between apartments. 

SD021 

ACOUSTICS 

KITCHEN 

LIVING 

a kitchen or bathroom in another apartment, the 

partition should be of discontinuous construction. 

The acoustic performance of a partition between 

an apartment and a common corridor does not 

include the Ctr. 

BGC RECOMMENDED 

WALL TYPE 

The system has been laboratory tested to 

R w 65 and R w + C tr 58. 

This wall system is classified as a discontinuous 

construction and exceeds the inter-tenancy partition 

requirements of the BCA. It will provide a good level 

of acoustic separation around an apartment and is 

recommended for all apartment types up to 

medium-to-high quality. 



19

BGC FIRE & ACOUSTIC / MARCH 2013 02 / ACOUSTIC INFORMATION 

20 

ACOUSTIC 

CONCEPTS 

INSULATION IN WALL, FLOOR AND ROOF 

CONSTRUCTIONS 

Acoustic ratings in this Guide are provided for two 

different types of polyester insulation: 50mm thick, 

9kg/m3 polyester and 75mm thick, 30kg/m3. 

Fibreglass insulation of the same thickness and mass 

may be used in lieu of these two types of polyester 

without changing the acoustic ratings. 

ON-SITE PERFORMANCE 

In an acoustic laboratory, sound insulation ratings 

are measured using purpose built rooms which give 

very accurate, reproducible results. The Rw value 

is a laboratory result. 

Things are not so simple on site. For example, 

the rating of a wall can be affected by the floor it 

is mounted on, the overhead ceiling, the side walls 

and any penetrations and services which run through 

the wall or floor above. The DnT,w value is an on 

site result. 

The Rw and DnT,w values are similar in concept but 

are not the same. The difference is the DnT,w accounts 

for the imperfect testing conditions found on site. 

As a guide, the DnT,w value of a partition is typically 

around 5dB lower than the Rw value. 

The Ctr correction can be applied to both Rw 

and DnT,w ratings. For example, the BCA states that 

walls separating adjacent apartments should have a 

minimum DnT,w + Ctr 45 rating, when site verification 

is being used for assessment purposes. 

FLANKING 

Flanking transmission means sound transmission 

around the partition rather than through it. 

Flanking transmission can occur when the floor, 

walls or ceiling around a separating partition have 

poor sound insulation, which decreases the 

performance of the separating partition. 

Flanking Flanking transmission sound is common transmission 

site and 

should be carefully assessed. 

IMPACT SOUND AND DISCONTINUITY 

So far, we have covered airborne sound which means 

sound such as voices and audio-speakers which travels 

through air. Impact sound means sound generated from 

impact on the partitions and floors of the building. 

For example, if someone walks on their tiled floor, 

a person on the floor beneath will hear the impact 

sound. Another example is someone closing a kitchen 

cupboard. If the cupboard is connected to the wall, 

a person on the other side of the wall will hear the 

impact sound from the cupboard door. For example, 

double stud partitions are discontinuous and single 

steel studs partitions are not. 

Impact sound 

In the BCA some partitions need to provide wall 

impact isolation. For example, a partition between 

a kitchen or bathroom in one apartment and a living 

room or bedroom in another apartment should have 

a discontinuous construction. This means the partition 

should include a structural break. 

There are a number of resilient acoustic mounts 

available in the market place. It is critical that a suitable 

resilient acoustic mount be selected in order for wall, 

floor or roof construction to achieve the acoustic 

rating. Good quality resilient acoustic mounts should 

be selected and loaded appropriately to ensure that 

static deflection is sufficient to achieve good acoustic 

performance. A suitable static deflection is typically 

around 5mm. Rondo and Embelton supply suitable 

resilient acoustic mounts.

CONTINUOUS CONSTRUCTION e.g. S001 

S001 

DISCONTINUOUS CONSTRUCTION e.g. SD019 

SD019 

QUALITY CONSTRUCTIONS / GENERAL DETAILING 

Quality on-site construction is critical to achieve a 

good level of acoustic performance in any building 

project. Small gaps and holes can often occur in 

and around a wall or floor. If these are left untreated 

they significantly down-rate the acoustic performance. 

Any gaps and holes must be minimised. Gaps and 

holes which do occur, including those around services 

penetrations, should be acoustically sealed to 

minimise the leakage effect on acoustic performance. 

ACOUSTIC 

CONCEPTS 

ACOUSTIC RATINGS 

Acoustic ratings in this Guide have been prepared by 

Marshall Day Acoustics Pty Ltd. Acoustic ratings have 

been developed based upon laboratory test data for 

BGC wall and floor systems, other available laboratory 

data for comparable constructions and calculations 

based on theoretical models. Ratings are expected 

to be accurate to within ± 2.5 Rw. 



21

BGC FIRE & ACOUSTIC / MARCH 2013 02 / ACOUSTIC INFORMATION 

22 

GLOSSARY OF 

ACOUSTIC TERMS 

dB 

NOISE 

SOUND INSULATION or 

SOUND REDUCTION 

R w 

D nT,w 

C tr 

R w +C tr 

D nT,w +C tr 

FLANKING 

STRUCTURE-BORNE 

TRANSMISSION 

Decibel. The unit of sound level. 

Unwanted sound. 

When sound hits a surface, some of the sound energy travels 

through the material. ‘Sound insulation or sound reduction’ refers to 

ability of a material to stop sound travelling through it. 

Weighted sound reduction index. 

A single number rating of the sound insulation performance of 

a specific building element such as a wall or floor. 

R w is measured in a laboratory. 

Weighted standardised level difference. 

A single number rating of the sound level difference between two rooms. 

D nT,w is typically used to measure on-site sound insulation performance 

of building elements such as a walls or floors. 

The on-site D nT,w value is typically about 5 points less than the 

laboratory R w value. 

C tr is a sound insulation adjustment, commonly used with R w and D nT,w . 

C tr adjusts for low frequency noise, such as noise from trucks and 

subwoofers. C tr values typically range from about -4 to about -12. 

The combined value of Weighted sound reduction index R w + Spectrum 

adaptation term C tr . 

A single number rating of the sound insulation performance of a building 

element with the C tr correction included. R w +C tr values are measured 

in the laboratory and are lower than R w values. 

The combined value of Weighted standardised level difference D nT,w 

+ spectrum adaptation term C tr . 

A single number rating of the sound level difference between two rooms 

with the C tr correction included. D nT,w +C tr is used to measure on-site 

sound insulation performance of building elements such as a walls or 

floors. D nT,w +C tr values are lower than D nT,w values. 

Transmission of sound energy through paths adjacent to the building 

element being considered. For example, sound may be transmitted 

around a wall by travelling up into the ceiling space and then down 

into the adjacent room. 

Transmission of sound energy as vibrations inside the structure 

of a building.

INTRODUCTION 

BGC fire-rated systems consist of single or multiple 

layers of BGC Fireboard sheets, screw-fixed to steel 

framing and nail or screw fixed to timber stud framing. 

BGC Fireboard is manufactured to the requirements 

of Australian Standards AS/NZS 2588:1998 - 

“Gypsum plasterboard” and must be installed in 

accordance with the Australian Standards AS/NZS 

2589:2007 Gypsum linings - Application and Finishing. 

BGC fire rated systems have been tested 

according to AS/NZS 3837: 1998 and AS/NZS 

1530.4, by NATA accredited testing laboratories. 

BGC Fireboard has a light-pink facing liner board and 

BGC Wet Area Fireboard has a blue/grey facing liner 

board for easy identification and is available in 13mm 

and 16mm thicknesses with recessed edges, ready 

for taping and jointing with proprietary 

jointing materials. 

EARLY FIRE HAZARD INDICES 

BGC Fireboard complies with the Building Code of 

Australia (BCA) Material Group Number Classification 

and Deemed to Satisfy Provisions, as determined 

by AS/NZS 3837: 1998 tests. 

• Material Classification: Group 1. 

(BCA) Specification A2.4) 

• Suitability as Wall and Ceiling Lining In Fire-Isolated 

Exits, Public Corridors, Specified and Other Areas. 

(BCA Specification C1.10a Section 3(c) and Table 2: 

Wall and Ceiling Linings Material Groups Permitted. 

• CSIRO BCE Certificate No 482 

APPLICATION 

BGC Fireboard systems are suitable for industrial, 

commercial and residential applications, both in 

the new construction and renovation sectors. 

Load bearing, non-load bearing walls and partitions 

can be clad with single or multiple layers of BGC 

Fireboard, with or without cavity infill insulation, 

to achieve the required results for fire resistance: 

FRL and acoustic properties: RW. 

BGC FIRE-RESISTANT (FR) 

PLASTERBOARD PARTITION SYSTEMS 

NON-LOAD BEARING WALLS 

The maximum wall heights for non-load bearing 

fire rated walls, in this Installation Guide are for 

laterally loaded walls of 0.25 kPa and 0.35 kPa, 

as set out in the Rondo Tables on page 11. 

The maximum stud height is based H/240 or 

30mm maximum deflection, to comply with 

BCA 2004 Specification 1.8 Clause 3.4. 

LOAD BEARING WALLS 

Load bearing walls in this Installation Guide must 

be designed and constructed in accordance with 

AS 1684 and AS 1720, for timber construction 

and AS/NZS 4600 and AS 3623 for light-weight 

Cold-Formed-Steel (CFS) construction. 

Load bearing walls must be designed and constructed 

to take all loads without any cladding or lining. 

INSTALLATION 

Installation is to be in accordance with AS/NZS 

2589:2007 Gypsum linings - Application and 

Finishing and as set out in this manual. 

All fire rated plasterboard must be mechanically 

fastener fixed to steel or timber framing. 

Stud adhesive must not be used. 

For multiple layered systems all joints must be 

staggered and butt joints in the outer layer may 

be reinforced with laminating screws. 

All perimeter gaps and penetrations must be 

fully sealed with an AS/NZS approved fire rated 

mastic sealant, to attain the required FRL 

and RW ratings. 


03 / FIRE INFORMATION 

23


FIRE RESISTANCE TERMS 

AND DEFINITIONS 

FIRE RESISTANCE LEVEL (FRL) 

The nominal grading period, in minutes, that 

is determined by subjecting a specimen to the 

standard time temperature curve regime as set 

out in AS1530.4. 

This is to specify— 

(a) Structural adequacy 

(b) Integrity 

(c) Insulation 

These are expressed in that order. 

Refer to the example below 

INSULATION 

The ability of an element of construction to maintain 

a temperature on the surface that is not exposed to 

the furnace, below the limits specified, when tested 

in accordance with AS1530.4. 

Eg: 60/60/60 

This means that during a fire test, the system did 

not fail for 60 minutes for each of the criteria. 

Ensure fasteners used to fix top and bottom track are 

appropriate for the Uniform Distributed Loads (UDL) 

on walls. 

03 / FIRE INFORMATION 24 

60/60/60. This indicates that it is a loadbearing 

system as it has a figure (60) in the first area 

(Structural adequacy) 

-/60/60. This indicates that it is a non loadbearing 

system as it has no figure (-) in the first area 

(Structural adequacy) 

The definitions as set out in the Standard 

are below: 

STRUCTURAL ADEQUACY 

The ability of a load-bearing element of construction 

to support a load when tested in accordance 

with AS1530.4. 

Eg: 60/60/60 

INTEGRITY 

The ability of an element of construction to resist 

the passage of flames and hot gases from one 

space to another, when tested in accordance 

with AS1530.4. 

Eg: 60/60/60 

VERTICAL - TEMP CELSIUS/ HORIZONTAL - TIME MINS 

1400 

1200 

1000 

800 

600 

400 

200 

At 600mm fastener centres and a UDL of 0.25kPa, 

the fasteners must withstand a shear load of 0.75kN. 

At 600mm fastener centres and a UDL of 0.35kPa, 

the fasteners must withstand a shear load of 1.1kN. 

Below is the standard time vs temperature table 

which is represented in the STANDARD TIME 

VS TEMPERATURE CURVE. 

This shows the rise in temperature vs the 

associated time. 

As indicated, in 5 minutes the temperature in 

the test facility has risen to 576 degrees Celsius, 

in 15 minutes 738 degrees Celsius and 90 minutes 

over 1,000 degrees Celsius and so on. 

Where a wall or ceiling is required to meet the 

various requirements under the BCA it is the job of 

the Fireboard and the framing to prevent the flames, 

smoke and temperature from getting through to 

the other side. 

For example, where there is a wall required to 

achieve a -/120/120 system number SO21 shows 

2 layers of 13mm Fireboard both sides of a metal 

stud. Effectively overall there is 52mm of fire rated 

plasterboard and framing to stop a peak of over 

1,000 degrees of heat reaching through to the 

other side for a period of 2 hours. 

0 

0 100 200 300 400 

Time Mins 0 5 10 15 30 60 90 120 180 240 360 

Temp Celsius 20 576 679 738 841 945 1006 1049 1110 1153 1213

CONTROL JOINTS 

A joint between or within discrete elements of 

construction, which allows for relative movement 

of the elements. 

Control joints can allow for a degree of building 

movement which can result from such things 

as moisture, loads, structural movement and 

foundation settlement etc. Cracks in plasterboard 

and plasterboard joints should be eliminated by using 

control joints and the correct installation techniques. 

Control joints must be installed in plasterboard 

walls and ceilings at: 

• Maximum 12 metre intervals 

• Control joints in the structure 

• Any change in the substrate material 

• Junctions of dissimilar structural products 

• When long runs of plasterboard meet at right 

angle (change of direction) 

Distance between control joints may need to 

be minimised to less than 12 metres due to on 

site conditions such as humidity or temperature 

variations or where ever excessive structural 

movement is likely to occur. 

ACCEPTABLE VARIATIONS TO 

FIRE RATED SYSTEMS 

Fire rated systems must be built according to 

BGC installation instructions. However, there 

are some variations allowed that will not degrade 

the performance of the system: 

• Increasing the width of the cavity (between stud 

walls in a double stud wall system) 

• Increasing the stud size or the metal thickness 

• Adding noggings to support fixtures or services 

• Decreasing stud spacing 

(increasing amount of studs) 

• Additional fasteners 

• Adding non-combustible layers to a system up 

to a weight of 20kg/m2 and no thicker than 25mm. 

This includes fibre cement board up to 9mm thick 

and plasterboard up to 25mm thick. For load 

bearing walls, the load per stud must include 

the extra lining. 

BGC FIRE-RESISTANT (FR) 

PLASTERBOARD PARTITION SYSTEMS 

MODIFICATIONS TO FIRE 

RATED SYSTEMS 

Fire rated systems may be modified by the installation 

of the following examples but not limited to these: 

• Fire rated inspection hatches 

• Fire rated power points 

• Fire rated light fittings 

• Fire rated doors 

It is the responsibility of the manufacturer of additional 

components in a fire system to ensure that the fire 

and acoustic properties of the plasterboard system 

are maintained. Any modification not covered in 

this manual must be according to the relevant 

manufacturer’s instructions. 


03 / FIRE INFORMATION 

25

BGC FIRE & ACOUSTIC / MARCH 2013 03 / FIRE INFORMATION 

26

STEEL FRAME INTERIOR WALL SYSTEM 

SINGLE STUD 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

STUD DEPTH mm 

CAVITY INFILL 

Nil 

9kg - 50mm Polyester 


WALL THICKNESS mm 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




STEEL STUDS AT 600mm MAX CENTRES 

Side 1 1 x 10mm BGC Plasterboard 








S001 

51 64 76 92 150 

Rw/Rw+Ctr 

30/25 31/25 31/26 32/26 33/27 

38/29 39/29 40/30 41/31 43/34 

38/29 40/30 40/30 42/31 44/34 

71 84 96 112 170 

S002 

51 64 76 92 150 

Rw/Rw+Ctr 

33/28 34/28 34/28 35/29 37/31 

41/31 42/32 43/32 44/33 46/37 

42/31 43/32 44/32 45/34 47/37 

77 90 102 118 176 

S003 

51 64 76 92 150 

Rw/Rw+Ctr 

38/32 38/32 39/32 40/33 42/34 

45/34 46/34 47/37 49/40 49/41 

45/34 46/34 48/37 49/40 49/42 

90 103 115 131 189 


04 / STEEL FRAME INFORMATION 

27



SINGLE STUD 




S005 

04 / STEEL FRAME INFORMATION 28 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

41/34 42/33 43/37 44/37 46/38 


49/38 50/41 52/43 53/45 55/48 


49/38 50/41 53/43 54/46 55/48 


103 116 128 144 202 


Side 1 1 x 10mm BGC Soundboard TM 


S006 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

33/28 35/29 35/29 36/29 38/31 


41/31 42/32 44/33 44/34 47/38 


41/31 43/32 44/33 45/34 48/39 


71 84 96 112 170 




S007 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Nil 




36/31 

44/33 

44/33 

77 

37/31 

45/34 

45/35 

90 

Rw/Rw+Ctr 

38/32 

46/37 

46/38 

102 

39/33 

46/38 

47/38 

118 

41/34 

48/42 

49/43 

176

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 


SINGLE STUD 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 






Side 2 1 x 10mm BGC WR Plasterboard 





Side 1 1 x 13mm BGC Fireboard 


PREVIOUSLY BGC001 

S009 

51 64 76 92 150 

Rw/Rw+Ctr 

38/32 38/32 39/32 40/33 42/34 

44/34 46/34 47/36 48/39 49/41 

45/34 47/34 47/36 49/39 49/41 

81 94 106 122 180 

S010 

51 64 76 92 150 

Rw/Rw+Ctr 

42/34 43/36 44/37 44/37 46/38 

50/40 52/41 53/43 54/46 55/48 

50/40 52/42 53/44 54/46 55/49 

91 104 116 132 190 

S011 

51 64 76 92 150 

Rw/Rw+Ctr 

34/29 35/29 36/30 37/31 39/33 

42/32 43/32 44/33 45/36 47/40 

42/32 44/33 44/34 46/37 48/41 

77 90 102 118 176 



29



SINGLE STUD 



1 x 10mm BGC Plasterboard 


S012 


FRL 

- / 60 / 60 

FRL 

- / 60 / 60 

FRL 

- / 60 / 60 

60 / 60 / 60 

STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

38/33 39/33 40/33 41/34 43/35 


46/34 47/36 48/39 49/39 50/42 


46/34 48/36 49/39 49/39 50/42 


87 100 112 128 186 




S018 

STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

39/33 40/33 40/34 41/35 43/37 


47/35 48/38 49/41 50/41 52/44 


48/35 49/39 49/41 51/42 52/45 


90 103 115 131 189 





S019 

STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

36/31 37/31 38/32 39/33 41/34 


44/33 45/34 46/37 46/38 48/42 


44/33 45/35 46/38 47/38 49/43 


83 96 108 124 182

FRL 

- / 120 / 120 

FRL 

- / 120 / 120 

90 / 90 / 90 

FRL 

-/120/120 


SINGLE STUD 

CAVITY INFILL 

Nil 








S021 

STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Nil 




CAVITY INFILL 

Nil 











Rw/Rw+Ctr 

43/36 44/38 45/39 46/39 48/41 

50/42 52/43 54/46 54/47 56/49 

50/42 52/44 54/47 55/48 56/49 

103 116 128 144 202 

S023 

STUD DEPTH mm 51 64 76 92 150 

Rw/Rw+Ctr 

45/38 47/40 47/39 48/40 50/42 

53/43 54/46 55/47 55/48 56/49 

54/44 55/47 55/47 56/49 56/49 

115 128 140 156 214 

S025 

STUD DEPTH mm 51 64 76 92 150 

Rw/Rw+Ctr 

47/41 48/41 49/42 50/43 53/45 

57/49 57/50 58/51 58/52 59/54 

57/49 58/51 58/52 58/53 59/55 

129 142 154 170 228 



31



SINGLE STUD 




S026 


FRL 

- / 180 / 180 

FRL 

- / - / - 

FRL 

- / - / - 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

50/43 51/44 51/44 52/45 54/46 


58/49 58/51 58/53 59/54 59/56 


58/49 58/52 59/54 59/54 59/56 


147 160 172 188 246 


Side 1 1 x 6mm BGC Duraliner TM 


S027 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

32/26 33/26 33/26 33/27 35/28 


41/31 41/31 43/32 44/32 46/35 


41/31 42/31 43/32 44/32 46/35 


63 76 88 104 162 




S028 

STUD DEPTH mm 

51 64 76 92 150 

CAVITY INFILL 

Nil 




39/32 

45/33 

46/34 

69 

40/33 

47/35 

47/35 

82 

Rw/Rw+Ctr 

41/33 

48/37 

49/37 

94 

41/34 

49/38 

49/38 

110 

42/34 

49/42 

49/43 

168

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 


SINGLE STUD 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 













S029 

51 64 76 92 150 

Rw/Rw+Ctr 

40/33 40/33 41/35 43/36 44/37 

48/36 49/40 49/40 52/44 54/47 

48/37 49/40 49/40 53/44 54/47 

75 88 100 116 174 

S031 

51 64 76 92 150 

Rw/Rw+Ctr 

34/28 35/29 35/28 36/29 38/31 

41/31 42/32 44/32 44/33 46/36 

42/31 43/32 44/32 45/33 47/37 

67 80 92 108 166 

S033 

51 64 76 92 150 

Rw/Rw+Ctr 

34/28 35/28 35/28 36/29 38/31 

41/31 42/31 43/32 44/33 46/36 

41/31 42/32 44/32 45/33 47/37 

70 83 95 111 169 



33

BGC FIRE & ACOUSTIC / MARCH 2013 04 / STEEL FRAME INFORMATION 

34 


SINGLE STUD 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 










51 64 76 92 150 

Rw/Rw+Ctr 

36/30 36/30 37/31 38/31 41/34 

42/32 44/33 45/34 46/36 49/40 

43/32 45/33 46/34 47/37 49/40 

73 86 98 114 172 

51 64 76 92 150 

Rw/Rw+Ctr 

34/28 35/28 35/28 36/29 38/31 

41/31 43/32 45/33 46/35 49/39 

42/31 44/33 45/33 46/35 49/40 

70 83 95 111 169 


Side 1 1 x 16mm BGC Fireboard (against studs) 

1 x 9mm BGC Duraliner TM 



S034 

S035 

S041 

51 64 76 92 150 

Rw/Rw+Ctr 

45/38 47/40 47/39 48/40 50/42 

53/43 54/46 55/47 55/48 56/49 

54/44 55/47 55/47 56/49 56/49 

73 86 98 114 172

FRL 

120 / 120 / 120 

FRL 

- / 180 / 180 


SINGLE STUD 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 





Side 1 1 x 9mm BGC Duraliner TM (against studs) 




PREVIOUSLY BGC DL001 


Side 1 2 x 16mm Wet Area Fireboard 


S043 

51 64 76 92 150 

Rw/Rw+Ctr 

45/38 47/40 47/39 48/40 50/42 

53/43 54/46 55/47 55/48 56/49 

54/44 55/47 55/47 56/49 56/49 

73 86 98 114 172 

S044 

51 64 76 92 150 

Rw/Rw+Ctr 

45/38 47/40 47/39 48/40 50/42 

53/43 54/46 55/47 55/48 56/49 

54/44 55/47 55/47 56/49 56/49 

73 86 98 114 172 



35


36 


SINGLE STUD 

FRL 

- / 120 / 120 

120 / 120 / 120 

FRL 

- / 60 / 60 

FRL 

- / 120 / 120 

120 / 120 / 120 


Side 1 

Side 2 3 x 16mm BGC Wet Area Fireboard 

STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Nil 





Side 1 


STUD DEPTH mm 51 64 76 92 150 

CAVITY INFILL 

Nil 





Side 1 


CAVITY INFILL 

Nil 




S045 

Rw/Rw+Ctr 

38/36 - - - - 

- - - - - 

- - - - - 

99 112 124 140 198 

S046 

Rw/Rw+Ctr 

35/32 - - - - 

- - - - - 

- - - - - 

83 96 108 124 182 

S048 

STUD DEPTH mm 51 64 76 92 150 

Rw/Rw+Ctr 

38/36 - - - - 

- - - - - 

- - - - - 

99 112 124 140 198

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 


STAGGERED STUD 

CAVITY INFILL 

Nil 




STAGGERED STEEL STUDS AT 600mm MAX CENTRES 



CAVITY WIDTH mm 76 92 150 

CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

33/27 33/27 34/28 

42/32 43/33 46/36 

42/32 44/33 47/37 

96 112 170 





CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

36/30 37/31 39/33 

46/34 47/36 49/38 

46/34 47/36 49/38 

102 118 176 





Rw/Rw+Ctr 

SS001 

SS002 

SS006 

36/30 37/30 39/32 

46/35 47/36 49/38 

47/35 48/36 49/38 

96 112 170 



37







SS007 


FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 


CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

38/32 39/33 41/34 


48/38 49/39 52/44 


49/38 50/39 53/45 


102 118 176 




SS010 


CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

46/39 46/39 49/41 


54/44 56/46 58/49 


55/44 57/47 59/50 


116 132 190 




SS011 


CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

38/32 39/33 41/35 


47/36 49/38 50/42 


48/36 49/38 51/42 


102 118 176

FRL 

- / 60 / 60 

FRL 

- / 60 / 60 

FRL 

- / 60 / 60 



CAVITY INFILL 

Nil 




CAVITY INFILL 

Nil 









CAVITY INFILL 

Nil 




Rw/Rw+Ctr 





Rw/Rw+Ctr 

41/35 43/37 45/38 

52/43 53/43 55/47 

53/43 54/43 57/48 

115 131 189 





Rw/Rw+Ctr 

SS014 

40/33 42/36 44/37 

50/42 52/42 55/46 

50/42 54/42 56/47 

115 131 189 

SS018 

SS019 

38/32 39/33 41/34 

48/38 49/39 52/44 

49/38 50/39 53/45 

108 124 182 



39


40 



FRL 

- / 60 / 60 

FRL 

- / 120 / 120 

FRL 

- / 120 / 120 

CAVITY INFILL 

Nil 









CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

SS020 

43/36 44/38 46/39 

53/42 54/45 56/48 

54/43 55/45 57/49 

121 137 195 





CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

46/40 47/40 50/42 

56/46 57/48 59/52 

57/46 58/49 60/52 

128 144 202 





Rw/Rw+Ctr 

SS021 

SS023 

47/40 48/41 51/43 

57/48 58/49 61/54 

58/49 59/50 61/54 

140 156 214

FRL 

- / 180 / 180 

FRL 

- / - / - 

FRL 

- / - / - 



CAVITY INFILL 

Nil 








CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

SS026 

50/42 51/43 54/45 

60/52 61/53 62/56 

61/53 61/54 62/57 

172 188 246 





CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

SS028 

39/31 39/32 41/33 

48/37 49/37 52/42 

49/37 50/38 54/43 

94 110 168 





Rw/Rw+Ctr 

SS032 

39/32 39/32 41/33 

47/36 49/39 52/43 

49/37 50/39 54/43 

102 118 176 



41


42 



FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

CAVITY INFILL 

Nil 








CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

35/28 36/29 38/31 

45/34 46/35 49/38 

46/34 47/35 49/38 

95 111 169 





CAVITY INFILL 

Nil 




Rw/Rw+Ctr 





Rw/Rw+Ctr 

SS033 

SS034 

38/32 39/32 42/35 

47/35 49/38 50/42 

48/36 49/38 51/40 

98 114 172 

SS035 

36/29 37/30 39/32 

46/34 47/36 49/38 

47/34 48/36 49/38 

95 111 169

FRL 

- / - / - 

FRL 

- / 60 / 60 

FRL 

120 / 120 / 120 



CAVITY INFILL 

Nil 










CAVITY INFILL 

Nil 








CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

47/39 48/40 51/43 

57/47 58/49 60/52 

58/48 59/50 61/53 

98 114 172 







Rw/Rw+Ctr 


Rw/Rw+Ctr 

SS036 

39/31 39/32 41/33 

48/37 49/37 52/42 

49/38 50/38 53/43 

101 117 175 

SS041 

SS043 

47/39 48/40 51/43 

57/47 58/49 60/52 

58/48 59/50 61/53 

98 114 172 


04 / STEEL FRAME INFORMATION 43



DOUBLE STUD 

MIN 20mm GAP BETWEEN STUD WALLS 

2 ROWS OF STEEL STUDS AT 600mm MAX CENTRES 



SD001 


FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

CAVITY WIDTH mm 

148 172 204 320 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

34/28 34/28 35/28 36/28 

9kg – 50mm Polyester – 1 side 

44/33 45/35 46/37 46/39 

9kg – 50mm Polyester – 2 sides 

46/35 47/37 48/39 48/41 


47/36 49/38 49/40 49/41 


49/36 49/38 49/39 50/42 


168 192 224 340 





SD002 


148 172 204 320 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

39/33 39/32 40/33 42/34 


51/42 52/43 52/44 52/46 


53/43 54/44 54/46 55/48 


54/43 54/44 55/46 56/48 


56/45 57/45 57/47 58/49 


174 198 230 346 





SD006 


148 172 204 320 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

39/32 39/33 40/33 42/33 


51/41 52/43 52/44 52/46 


53/43 54/45 55/46 55/49 


54/43 55/45 56/46 56/49 


56/44 57/46 57/47 58/49 


168 192 224 340

FRL 

- / - / - 

FRL 

- / 60 / 60 

FRL 

60 / 60 / 60 


DOUBLE STUD 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










148 172 204 320 

Rw/Rw+Ctr 

42/35 42/35 43/36 46/37 

54/45 55/47 55/48 56/49 

56/45 57/48 57/49 58/49 

57/46 57/48 58/49 59/50 

59/48 60/49 60/49 61/50 

174 198 230 346 





SD007 

SD011 

148 172 204 320 

Rw/Rw+Ctr 

40/34 41/34 42/35 43/35 

52/43 52/45 53/45 53/48 

54/45 54/46 55/47 55/49 

55/46 56/47 57/48 57/49 

57/46 58/47 58/48 59/49 

174 198 230 346 







SD016 

148 172 204 320 

Rw/Rw+Ctr 

46/39 47/39 48/39 49/40 

58/48 59/49 59/49 59/50 

60/51 61/52 61/53 62/53 

61/51 62/52 62/53 63/54 

63/52 65/53 65/54 66/55 

200 224 256 372 



45


46 


DOUBLE STUD 

FRL 

- / 60 / 60 

60 / 60 / 60 

FRL 

- / 120 / 120 

90 / 90 / 90 

FRL 

- / 120 / 120 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










SD019 

148 172 204 320 

Rw/Rw+Ctr 

41/34 41/34 42/35 45/36 

53/45 54/46 54/47 55/49 

55/46 56/45 56/49 57/51 

56/46 56/47 57/49 58/51 

58/48 59/49 60/50 61/52 

180 204 236 352 





SD021 

148 172 204 320 

Rw/Rw+Ctr 

48/40 49/41 50/41 53/44 

60/51 60/52 61/53 61/55 

62/52 62/53 63/55 63/57 

63/53 64/54 65/56 65/58 

65/58 66/58 67/58 68/60 

200 224 256 372 





SD023 

148 172 204 320 

Rw/Rw+Ctr 

48/40 49/41 51/42 54/44 

60/52 61/53 61/54 62/56 

62/53 63/54 63/55 64/58 

63/53 64/54 64/56 65/58 

65/58 66/58 66/58 67/60 

212 236 268 384

FRL 

- / 60 / 60 

FRL 

- / 120 / 120 

FRL 

- / 180 / 180 


DOUBLE STUD 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










148 172 204 320 

Rw/Rw+Ctr 

45/38 46/39 47/39 49/40 

57/48 57/49 58/49 59/50 

59/50 59/51 60/52 61/53 

60/50 61/51 62/53 63/54 

62/54 63/54 64/54 65/55 

187 211 243 359 





SD024 

SD025 

148 172 204 320 

Rw/Rw+Ctr 

54/45 55/46 56/47 59/49 

67/58 67/59 68/60 68/62 

68/58 68/59 69/61 69/63 

69/58 69/60 70/61 71/64 

71/59 71/60 72/62 73/65 

226 250 282 398 





SD026 

148 172 204 320 

Rw/Rw+Ctr 

55/46 56/46 57/47 60/49 

67/59 68/60 68/61 69/63 

69/60 70/61 70/63 71/65 

70/60 71/61 71/63 72/65 

72/61 73/62 73/63 74/67 

244 268 300 416 



47


48 


DOUBLE STUD 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










148 172 204 320 

Rw/Rw+Ctr 

38/31 39/32 39/32 41/33 

50/40 51/41 51/43 52/45 

52/41 53/43 53/44 54/46 

53/42 54/43 54/45 55/47 

55/43 57/45 57/47 58/49 

160 184 216 332 





148 172 204 320 

Rw/Rw+Ctr 

42/35 43/35 44/36 46/38 

54/44 55/45 55/47 56/49 

56/46 57/47 57/48 58/49 

57/46 58/48 58/49 59/49 

59/48 60/49 60/49 62/50 

166 190 222 338 







SD027 

SD028 

SD038 

148 172 204 320 

Rw/Rw+Ctr 

46/38 46/38 48/39 49/39 

58/48 58/49 59/49 59/50 

60/50 61/51 62/52 62/53 

61/50 62/51 63/53 64/54 

63/52 64/52 65/53 66/55 

186 210 242 358

FRL 

- / 60 / 60 

FRL 

120 / 120 / 120 


DOUBLE STUD 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 












SD042 

148 172 204 320 

Rw/Rw+Ctr 

48/40 49/40 50/41 51/42 

60/51 60/52 61/53 61/55 

62/52 62/53 63/54 63/57 

63/53 64/54 65/55 65/58 

65/56 66/56 66/56 67/59 

192 216 248 364 








SD043 

148 172 204 320 

Rw/Rw+Ctr 

48/39 49/40 50/41 53/43 

60/51 61/52 61/53 61/55 

62/52 63/53 63/55 64/57 

63/52 63/53 64/55 65/58 

65/54 66/55 67/57 68/60 

198 222 254 370 



49


50 

BGC CINEMA WALL SYSTEM 

SYSTEM SET OUT 

• Top hat sections (50mm x 35mm x 1.15m) fixed 

vertically at 900mm max centres to engineers design 

and supported at the head and the base with tracks 

• The span of the Top hats between girts shall be 

nominally 1.9m for single spans and 2.7m for 

continuous spans. To be confirmed as suitable 

by the engineer for internal wind pressures. 

• Steel columns and girts to be engineer specified 

• Girts to be fixed to vertical steel columns using 

proprietarty isolation mounts that include a 

through bolt 

FRL 

120 / 120 / 120 

FRL 

120 / 120 / 120 

MIN CAVITY mm 

CAVITY INFILL 

2 x Bradford Glasswool 110 (R2.5) 

2 x Autex AAB32-100 

2 x 30kg - 75mm Polyester 

WALL THICKNESS 

MIN CAVITY WIDTH mm 

CAVITY INFILL 

2 x Bradford Glasswool 110 (R2.5) 

2 x Autex AAB32-100 

2 x 30kg - 75mm Polyester 

WALL THICKNESS 

PLASTERBOARD FIXINGS 

• Layer 1 to Top hat – 30mm bugle head screws 

at 600mm centres 

• Layer 2 to Top hat – 45mm bugle head screws 

at 300mm centres and laminating screws at 300mm 

centres 200mm from top and bottom 

• Layer 3 to layer 2 – 38mm laminating screws at 

400mm x 400mm grid 

• Layer 4 to layer 3 – 38mm laminating screws at 

400mm x 400mm grid 

• 2 layers glasswool or polyester insulation. 

Refer to insulation in system specification 

• Perimeters to be caulked with fire rated caulking 

to a depth of 30mm x 10mm wide when used 

with a backing rod 

• Vertical control joints to be caulked to a depth of 

16mm backed with plaster 

STEEL TOP HATS AT 900mm MAX CENTRES 



STEEL TOP HATS AT 900mm MAX CENTRES 



375 

Rw 

75/68 

75/68 

74/67 

471 

375 

Rw 

79/72 

79/72 

78/71 

503 

SC001 

SC002

STEEL FRAME WITH ONE LAYER BGC FIREBOARD - 

VERTICAL SHEETING 

SCREW FIXINGS FOR LIGHTWEIGHT STEEL FRAMING 

FRAMING 


0.8mm 

Lightweight Steel 0.8mm 

to 1.6mm 

FIREBOARD THICKNESS 

13mm 

16mm 

13mm 

16mm 

STEEL FRAME WITH ONE LAYER BGC FIREBOARD - 

HORIZONTAL SHEETING 

INSTALLATION DETAILS 

STEEL STUD 

FIXING SPECIFICATIONS 

FASTENER SPACING 

300mm max. centres 




SCREW TYPE 

No 6 Type S Needle Point 


No 6 Type D Drill Point 



FRAMING 


0.8mm 


to 1.6mm 


13mm 

16mm 

13mm 

16mm 

SCREW TYPE 





POSITION 

Centre of the Board 

Recessed Edges 

Butt Joints 

Corners & Openings 

SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 




At each stud 



POSITION 



Butt Joints 


SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 



51


52 


STEEL STUD 

STEEL FRAME WITH TWO LAYERS BGC FIREBOARD - VERTICAL SHEETING 


FRAMING 


0.8mm 


to 1.6mm 


13mm 

16mm 

13mm 

16mm 

STEEL FRAME WITH TWO LAYERS BGC FIREBOARD - 

FIRST LAYER VERTICAL, SECOND LAYER HORIZONTAL 


FIRST LAYER 









SCREW TYPE 






FRAMING 


0.8mm 


to 1.6mm 


13mm 

16mm 

13mm 

16mm 





SECOND LAYER 

LOCATION 






Butt Joints 



FIRST LAYER 


At Each Stud 



SCREW TYPE 





SECOND LAYER 

SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 

2ND LAYER 

45mm 

45mm 

45mm 

45mm 

LOCATION 






Butt Joints 


SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 

2ND LAYER 

45mm 

45mm 

45mm 

45mm

STEEL FRAME WITH THREE LAYERS BGC FIREBOARD - 



STEEL STUD 


FIXING SPECIFICATIONS THREE LAYER 

VERTICAL(Shown) 

FIRST LAYER 









Laminating Screws at 

400mm max. grid 

SECOND LAYER 

THIRD LAYER 

LOCATION 






Butt Joints 




Butt Joints 



FRAMING 


0.8mm 


to 1.6mm 


13mm 

16mm 

13mm 

16mm 


THREE LAYER HORIZONTAL 

FIRST LAYER 











SCREW TYPE 





SECOND LAYER 

THIRD LAYER 

LOCATION 






Butt Joints 




Butt Joints 


SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 

2ND LAYER 

45mm 

45mm 

45mm 

45mm 

04 / STEEL FRAME INFORMATION 53


54 


STEEL STUD 

LOAD BEARING WALL 60/60/60 

Note: Refer to page 10 for screw lengths. 


FRAMING 


0.8mm 


to 1.6mm 


13mm 

16mm 

13mm 

16mm 

SCREW TYPE 








At each stud 



SCREW LENGTH 

1ST LAYER 

25mm 

30mm 

32mm 

32mm 

POSITION 



Butt Joints 

Corners & Openings

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

TIMBER FRAME INTERIOR WALL SYSTEM 

SINGLE STUD 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




TIMBER STUDS AT 600mm MAX CENTRES 

WITH NOGGINGS AT 1350mm MAX CENTRES 



70 90 120 140 

Rw/Rw+Ctr 

31/25 32/26 33/27 33/27 

37/28 37/28 38/30 39/32 

37/28 38/29 39/30 39/32 

90 110 140 160 





70 90 120 140 

Rw/Rw+Ctr 

34/28 35/30 36/30 37/31 

39/32 40/32 41/35 41/35 

40/32 40/32 41/35 41/35 

96 116 146 166 





T001 

T002 

T004 

70 90 120 140 

Rw/Rw+Ctr 

39/31 39/33 40/33 41/34 

44/36 45/37 45/40 45/40 

44/36 45/38 45/40 46/40 

90 110 140 160 


05 / TIMBER FRAME INFORMATION 

55

BGC FIRE & ACOUSTIC / MARCH 2013 05 / TIMBER FRAME INFORMATION 

56 


SINGLE STUD 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




STUD DEPTH mm 

CAVITY INFILL 

Nil 




CAVITY INFILL 

Nil 








70 90 120 140 

Rw/Rw+Ctr 

41/35 43/37 43/37 44/37 

46/41 47/42 47/42 47/43 

46/41 47/42 47/43 47/43 

122 142 172 192 





T005 

T006 

70 90 120 140 

Rw/Rw+Ctr 

34/29 35/29 35/29 36/30 

39/31 39/32 40/35 40/34 

39/31 39/32 40/35 40/35 

90 110 140 160 





T007 

STUD DEPTH mm 70 90 120 140 

Rw/Rw+Ctr 

36/31 37/31 38/33 38/33 

40/34 40/36 40/37 40/37 

40/34 41/36 41/37 41/38 

96 116 146 166

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 

60 / 60 / 60 


SINGLE STUD 

STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

35/29 35/29 36/30 37/30 


39/31 40/31 41/35 41/34 


39/31 40/32 41/35 41/35 


90 110 140 160 

CAVITY INFILL 

Nil 








STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Nil 







Side 2 1 x 10mm BGC WR Plasterboard 

Rw/Rw+Ctr 

43/37 44/37 44/38 45/39 

47/41 48/43 48/44 48/44 

47/42 48/43 48/44 48/44 

110 130 160 180 





PREVIOUSLY BGC 005 

T008 

T010 

T011 

STUD DEPTH mm 70 90 120 140 

Rw/Rw+Ctr 

35/30 36/31 37/32 38/33 

40/32 41/35 41/36 41/37 

40/33 41/35 41/36 42/37 

96 116 146 166 



57



SINGLE STUD 






T015 

05 / TIMBER FRAME INFORMATION 58 

FRL 

- / - / - 

FRL 

- / 60 / 60 

60 / 60 / 60 

FRL 

- / 120 / 120 

STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 

37/31 37/31 39/33 39/32 


41/33 42/36 43/37 43/38 


42/33 42/37 43/38 43/39 


106 126 156 176 





PREVIOUSLY BGC 007 

T019 

STUD DEPTH mm 

70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 




36/31 

40/34 

40/34 

102 

37/31 

40/36 

41/36 

122 

38/33 

40/37 

41/37 

152 

38/33 

40/37 

41/38 

172 





T021 

STUD DEPTH mm 

70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 




44/39 

48/43 

48/43 

122 

44/39 

48/44 

48/44 

142 

45/40 

48/45 

48/45 

172 

46/40 

48/45 

48/45 

192


SINGLE STUD 





T022 


FRL 

60 / 60 / 60 

FRL 

- / 120 / 120 

FRL 

- / 180 / 180 

STUD DEPTH mm 

70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 




40/35 

44/39 

44/39 

122 

41/37 

44/40 

44/41 

142 

42/37 

44/41 

44/41 

172 

42/37 

44/41 

44/41 

192 





T023 

STUD DEPTH mm 

70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 




45/40 

48/45 

48/45 

134 

46/40 

48/45 

48/45 

154 

46/41 

48/45 

48/45 

184 

47/42 

48/45 

48/45 

204 





T026 

STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Rw/Rw+Ctr 

Nil 




134 154 184 204 

05 / TIMBER FRAME INFORMATION 59



SINGLE STUD 





T027 

05 / TIMBER FRAME INFORMATION 60 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

60 / 60 / 60 

STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Nil 




CAVITY INFILL 

Nil 




CAVITY INFILL 

Nil 





Rw/Rw+Ctr 

33/26 33/26 34/27 34/27 

40/30 41/31 42/34 42/34 

40/30 41/31 43/34 43/34 

82 102 132 152 



Side 1 1 x 10mm BGC Soundboard TM (against stud) 


Side 2 1 x 10mm BGC Soundboard TM (against stud) 


T037 

STUD DEPTH mm 70 90 120 140 

Rw/Rw+Ctr 

41/34 42/36 43/36 43/36 

46/39 47/41 47/42 47/42 

46/39 47/41 47/42 47/43 

102 122 152 172 







T039 

STUD DEPTH mm 70 90 120 140 

Rw/Rw+Ctr 

42/36 43/37 44/38 44/38 

47/41 47/43 48/43 48/44 

47/41 48/43 48/44 48/44 

108 128 158 178

FRL 

90 / 90 / 90 

FRL 

- / 180 / 180 

FRL 

- / 60 / 60 


SINGLE STUD 

CAVITY INFILL 

Nil 











T042 

STUD DEPTH mm 70 90 120 140 

STUD DEPTH mm 

CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

44/39 45/39 46/40 46/40 

48/43 48/44 48/45 48/45 

48/43 48/44 48/45 48/45 

114 134 164 184 





T044 

70 90 120 140 

Rw/Rw+Ctr 

45/40 46/40 46/41 47/42 

48/45 48/45 48/45 48/45 

48/45 48/45 48/45 48/45 

114 134 164 184 



Side 1 


STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Nil 




T046 

Rw/Rw+Ctr 

35/32 - - - 

- - - - 

- - - - 

102 122 152 172 



61


62 


SINGLE STUD 

FRL 

- / 90 / 90 



Side 1 


STUD DEPTH mm 70 90 120 140 

CAVITY INFILL 

Nil 




T048 

Rw/Rw+Ctr 

38/36 - - - 

- - - - 

- - - - 

118 138 168 188

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / 60 / 60 



STAGGERED TIMBER STUDS AT 600mm MAX CENTRES 

MIN 20mm CLEARANCE BETWEEN STUD AND 

OPPOSING WALL LINING 



PLATE WIDTH mm 90 120 140 

CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

33/27 34/28 35/29 

43/34 45/38 45/37 

44/34 46/38 46/38 

110 140 160 







CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

42/35 43/36 44/36 

52/45 52/46 53/47 

52/45 53/47 53/47 

130 160 180 







CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

TS006 

TS010 

TS011 

35/29 37/31 37/32 

45/37 46/38 46/40 

45/37 46/39 47/40 

116 146 166 



63


64 



FRL 

- / 90 / 90 

FRL 

- / 120 / 120 

FRL 

- / 120 / 120 







CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

36/30 38/32 38/32 

46/39 46/40 46/41 

46/39 46/40 47/42 

122 152 172 







CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

42/36 43/37 44/37 

52/46 53/48 53/48 

53/47 53/48 53/49 

142 172 192 







CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

TS019 

TS021 

TS023 

43/37 45/38 45/38 

53/48 53/49 53/49 

53/49 53/50 53/50 

154 184 204

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 









CAVITY INFILL 

Nil 










CAVITY INFILL 

Nil 










CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

Rw/Rw+Ctr 

37/30 39/32 39/31 

47/38 48/39 48/40 

47/38 48/40 48/40 

108 138 158 

Rw/Rw+Ctr 

TS027 

33/26 33/25 33/26 

43/31 45/35 45/35 

43/31 45/35 46/35 

102 132 152 

TS028 

TS030 

32/25 33/26 33/26 

42/31 44/34 45/36 

43/31 45/34 46/35 

106 136 156 



65


66 



FRL 

- / - / - 

FRL 

60 / 60 / 60 

FRL 

60 / 60 / 60 







CAVITY INFILL 

Nil 












CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

42/34 43/35 43/36 

52/46 53/47 53/47 

53/46 53/47 53/47 

128 158 178 









CAVITY INFILL 

Nil 




Rw/Rw+Ctr 

Rw/Rw+Ctr 

TS031 

33/26 33/26 34/27 

43/32 45/36 45/35 

43/32 46/36 46/36 

106 136 156 

TS039 

TS040 

42/34 43/36 44/36 

52/46 53/48 53/48 

53/47 53/48 53/49 

134 164 184

FRL 

90 / 90 / 90 










CAVITY INFILL 

Nil 






Rw/Rw+Ctr 

TS042 

42/34 43/36 44/36 

52/46 53/48 53/48 

53/47 53/48 53/49 

134 164 184 



67


68 


DOUBLE STUD 

FRL 

- / 60 / 60 

FRL 

- / 60 / 60 

FRL 

- / 60 / 60 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







2 ROWS OF TIMBER STUDS AT 600mm MAX CENTRES 



160 200 260 300 

Rw/Rw+Ctr 

40/34 42/35 43/35 44/36 

52/44 53/45 53/47 53/47 

54/45 55/47 55/48 55/49 

55/45 56/48 56/48 56/49 

57/46 58/48 59/49 59/49 

186 226 286 326 



Side 1 1 x 13mm BGC Plasterboard (against stud) 


Side 2 1 x 13mm BGC Plasterboard (against stud) 


TD011 

TD013 

160 200 260 300 

Rw/Rw+Ctr 

46/37 47/38 48/38 49/39 

57/48 57/49 58/49 58/51 

60/50 61/52 61/53 61/53 

61/50 61/52 62/54 62/55 

63/52 64/54 65/55 65/55 

212 252 312 352 



Side 1 1 x 10mm BGC Plasterboard (against studs) 


Side 2 1 x 10mm BGC Plasterboard (against studs) 


TD017 

CAVITY WIDTH mm 160 200 260 300 

Rw/Rw+Ctr 

Nil 

46/38 47/39 48/39 49/40 


57/49 58/49 58/49 58/51 


60/51 61/52 61/53 61/53 


61/51 62/53 63/54 63/55 


63/52 64/54 65/55 65/55 


212 252 312 352

FRL 

- / 60 / 60 

60 / 60 / 60 

FRL 

- / 120 / 120 

FRL 

- / 120 / 120 


DOUBLE STUD 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










160 200 260 300 

Rw/Rw+Ctr 

42/35 43/36 45/37 45/37 

54/46 55/48 55/49 55/49 

56/48 57/49 57/49 57/50 

57/48 58/49 58/49 58/51 

59/48 60/49 61/50 61/51 

192 232 292 332 





160 200 260 300 

Rw/Rw+Ctr 

48/40 50/41 51/43 52/43 

60/51 60/53 61/55 61/55 

62/53 63/55 63/56 63/57 

63/53 64/55 64/56 64/57 

65/54 65/55 66/57 66/58 

212 252 312 352 





TD019 

TD021 

TD023 

160 200 260 300 

Rw/Rw+Ctr 

48/39 49/41 51/42 52/43 

60/52 61/54 61/55 61/56 

62/54 63/55 64/57 64/57 

63/54 64/56 65/57 65/58 

65/54 66/57 67/58 67/59 

224 264 324 364 



69


70 


DOUBLE STUD 

FRL 

- / 120 / 120 

FRL 

- / - / - 

FRL 

- / - / - 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 










160 200 260 300 

Rw/Rw+Ctr 

54/45 56/46 58/48 59/49 

67/59 68/61 69/62 69/63 

69/61 70/62 71/64 71/65 

70/61 71/63 72/64 72/65 

72/61 73/63 73/65 73/65 

256 296 356 396 





160 200 260 300 

Rw/Rw+Ctr 

38/30 38/31 39/32 40/32 

51/41 51/43 52/44 52/45 

52/42 53/45 54/46 54/46 

53/42 54/45 55/47 55/47 

55/43 56/46 57/48 57/49 

172 212 272 312 





TD026 

TD027 

TD028 

160 200 260 300 

Rw/Rw+Ctr 

42/34 43/35 44/36 45/36 

55/45 55/46 56/48 56/48 

56/46 57/48 58/49 58/50 

58/47 58/49 58/49 58/51 

59/47 60/49 61/49 61/52 

178 218 278 318

FRL 

60 / 60 / 60 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 


DOUBLE STUD 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 













160 200 260 300 

Rw/Rw+Ctr 

46/38 47/39 48/39 49/40 

58/49 59/49 59/49 59/51 

60/50 60/52 61/53 61/53 

61/51 62/53 63/54 63/54 

63/52 64/53 65/55 65/55 

198 238 298 338 







160 200 260 300 

Rw/Rw+Ctr 

48/39 49/40 51/41 52/42 

60/51 61/53 61/54 61/55 

62/53 63/54 63/56 63/57 

63/53 64/54 64/56 64/57 

65/53 65/55 66/57 66/58 

204 244 304 344 








TD039 

TD040 

TD042 

160 200 260 300 

Rw/Rw+Ctr 

48/39 49/40 51/41 52/42 

60/51 61/53 61/54 61/55 

62/53 63/54 63/56 63/57 

63/53 64/54 64/56 64/57 

65/53 65/55 66/57 66/58 

204 244 304 344 



71


72 


TIMBER STUD 

TIMBER FRAME WITH ONE LAYER BGC FIREBOARD - 


TIMBER FRAME WITH ONE LAYER BGC FIREBOARD - 


SCREW FIXINGS FOR SOFT WOOD TIMBER FRAMING 

FRAMING 



13mm 

16mm 



2 Nails 50mm apart at 


1 screw at 200mm 

max. centres 

At Each Stud 

Nails at 150mm max. 

centres Screws at 


Nails at 150mm 

max. centres Screws 

at 200mm max. 

centres 





max. centres 

At Each Stud 






at 200mm max. 

centres 

SCREW TYPE 

No 6 Type W 

No 6 Type W 

LOCATION 



Butt Joints 



LOCATION 



Butt Joints 


SCREW LENGTH 

1ST LAYER 

32mm 

45mm

TIMBER FRAME WITH TWO LAYERS BGC FIREBOARD - 



FRAMING 



13mm 

16mm 


TIMBER STUD 


Nails or Screws 






in stagered pattern 




max. centres 

Nails or screws at 







at 300mm max. 

centres 

SCREW TYPE 

No 6 Type W 

No 6 Type W 


FIRST LAYER 

SECOND LAYER 

LOCATION 



Butt Joints 



Butt Joints 

on noggins 


SCREW LENGTH 

1ST LAYER 

32mm 

45mm 

2ND LAYER 

50mm 

65mm 



73


74 


TIMBER STUD 

TIMBER FRAME WITH THREE LAYERS BGC FIREBOARD - 



THREE LAYER HORIZONTAL 

FIRST LAYER 



Fasteners at each stud 


2 nails 50mm apart at 

300mm max. centre 

1 scew at 200mm max. 

centres 

Fasteners at each stud 

Nails 300mm max 

Screws 150mm max 

centres 



Laminating Screws 


SECOND LAYER 

THIRD LAYER 

LOCATION 






Butt Joints on studs 




Butt Joints 


FRAMING 



13mm 

16mm 

SCREW TYPE 

No 6 Type W 

No 6 Type W 

FIXING SPECIFICATIONS THREE LAYER 

VERTICAL-VERTICAL SHEETING (Shown) 

FIRST LAYER 





SECOND LAYER 

LOCATION 




2 nails 50mm apart at 

300mm max. centre 


1 scew at 300mm max. 

centres 

300mm max. centres Recessed Edges 



Butt Joints 

Nail screws 150mm max Corners & Openings 


THIRD LAYER 





1ST LAYER 

32mm 

45mm 




SCREW LENGTH 

2ND LAYER 

50mm 

65mm 

Butt Joints 

3RD LAYER 

50mm 

65mm

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

TIMBER FRAME EXTERIOR WALL SYSTEM 

SINGLE STUD 


WITH NOGGINS AT 1350mm MAX CENTRES 



Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 





Fire rated from outside only 





Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 






Timber batten can be substituted for steel batten 

90 

41/35 

45/38 

45/38 

123.5 

90 

45/39 

48/42 

48/42 

123.5 

90 

38/27 

45/34 

45/34 

125 

120 

Rw/Rw+Ctr 

42/35 

46/40 

46/41 

123.5 

120 

Rw/Rw+Ctr 

45/39 

48/44 

48/45 

123.5 

120 

Rw/Rw+Ctr 

41/31 

47/37 

47/37 

155 

TE001 

140 

42/36 

46/41 

46/41 

123.5 

TE002 

140 

46/39 

48/45 

49/45 

123.5 

TE003 

140 

43/34 

48/39 

48/39 

175 


06 / EXTERIOR WALL INFORMATION 

75

BGC FIRE & ACOUSTIC / MARCH 2013 06 / EXTERIOR WALL INFORMATION 

76 


SINGLE STUD 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 





Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 






Timber batten can be substituted for stee 





Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 






90 

42/30 

48/37 

48/37 

141 

90 

40/28 

46/34 

46/34 

125 

90 

40/28 

49/34 

49/34 

141 

120 

Rw/Rw+Ctr 

45/35 

50/40 

50/40 

171 

120 

Rw/Rw+Ctr 

43/32 

48/37 

48/37 

155 

120 

Rw/Rw+Ctr 

44/32 

50/37 

50/37 

171 

TE004 

140 

47/37 

51/41 

51/41 

191 

TE005 

140 

44/34 

48/38 

48/38 

175 

TE006 

140 

45/34 

51/39 

51/39 

191

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 


SINGLE STUD 





Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 






90 

41/30 

46/34 

46/34 

130 

90 

42/29 

48/34 

48/34 

146 

90 

42/36 

46/39 

46/40 

125 

120 

Rw/Rw+Ctr 

41/31 

47/37 

47/37 

160 

120 

Rw/Rw+Ctr 

44/31 

50/37 

50/37 

176 

120 

Rw/Rw+Ctr 

43/36 

46/41 

46/41 

155 

TE007 

140 

44/33 

48/38 

48/38 

180 

TE008 

140 

46/33 

50/38 

50/38 

196 

TE009 

140 

43/37 

46/41 

46/42 

175 



77


78 


SINGLE STUD 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 





Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 










Side 2 

STUD WIDTH mm 

CAVITY INFILL 

Nil 






90 

45/39 

48/43 

48/43 

141 

90 

42/36 

46/39 

46/39 

128 

90 

45/39 

48/43 

48/43 

141 

120 

Rw/Rw+Ctr 

45/39 

49/44 

49/45 

171 

120 

Rw/Rw+Ctr 

43/36 

46/41 

46/41 

155 

120 

Rw/Rw+Ctr 

45/39 

49/44 

49/45 

171 

TE010 

140 

46/40 

49/44 

49/45 

191 

TE011 

140 

43/37 

46/41 

46/42 

175 

TE012 

140 

46/40 

49/44 

49/44 

191

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

STEEL FRAME EXTERIOR WALL SYSTEM 

SINGLE STUD 




Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 








Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 






64 

42/36 

49/41 

50/41 

103.5 

64 

48/41 

56/50 

57/50 

135.5 

Timber batten can be substituted for steel 

64 

42/30 

49/37 

49/37 

105 

76 92 

Rw/Rw+Ctr 

42/35 

50/43 

51/43 

115.5 

76 

48/41 

57/51 

57/51 

147.5 

76 

44/33 

51/40 

51/40 

117 

43/36 

51/44 

51/44 

131.5 

92 

Rw/Rw+Ctr 

49/42 

57/51 

57/51 

163.5 

92 

Rw/Rw+Ctr 

46/36 

52/42 

52/42 

133 

SE001 

150 

45/37 

52/47 

52/47 

189.5 

SE002 

150 

52/44 

57/52 

57/52 

221.5 

SE003 

150 

50/42 

55/46 

55/46 

191 



79


80 


SINGLE STUD 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 




Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 






Timber batten can be substituted for steel 




Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 






64 

50/40 

57/46 

57/46 

137 

64 

44/33 

49/37 

50/38 

105 

64 

51/41 

57/45 

57/45 

137 

76 92 

Rw/Rw+Ctr 

51/42 

58/48 

58/48 

149 

76 

45/35 

52/40 

52/40 

117 

76 

53/42 

58/46 

58/46 

149 

52/43 

59/49 

59/49 

165 

92 

Rw/Rw+Ctr 

47/37 

53/42 

53/42 

133 

92 

Rw/Rw+Ctr 

54/44 

59/48 

59/48 

165 

SE004 

150 

54/46 

60/53 

60/53 

223 

SE005 

150 

52/42 

56/46 

56/46 

191 

SE006 

150 

56/46 

59/51 

59/51 

223

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 


SINGLE STUD 




Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 






64 

45/35 

50/38 

50/38 

110 

64 

52/40 

57/44 

57/44 

142 

64 

42/36 

50/42 

50/42 

105 

76 92 

Rw/Rw+Ctr 

47/36 

51/40 

51/40 

122 

76 

51/39 

58/45 

58/44 

154 

76 

42/36 

51/44 

51/44 

117 

46/36 

52/41 

52/41 

138 

92 

Rw/Rw+Ctr 

53/41 

58/46 

58/46 

170 

92 

Rw/Rw+Ctr 

43/36 

52/44 

52/45 

133 

SE007 

150 

50/40 

54/45 

54/45 

196 

SE008 

150 

56/45 

59/50 

59/50 

228 

SE009 

150 

45/38 

53/47 

53/48 

191 



81


82 


SINGLE STUD 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 




Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 









Side 2 

STUD DEPTH mm 

CAVITY INFILL 

Nil 






64 

48/41 

57/50 

57/51 

137 

64 

42/36 

50/42 

50/42 

105 

64 

48/41 

57/50 

57/51 

137 

76 92 

Rw/Rw+Ctr 

49/42 

57/51 

57/51 

149 

76 

42/36 

51/44 

51/44 

117 

76 

49/42 

57/51 

57/51 

149 

50/43 

57/51 

58/52 

165 

92 

Rw/Rw+Ctr 

43/36 

52/44 

52/45 

133 

92 

Rw/Rw+Ctr 

50/43 

57/51 

58/52 

165 

SE010 

150 

52/44 

58/53 

58/53 

223 

SE011 

150 

45/38 

53/47 

53/48 

191 

SE012 

150 

52/44 

58/53 

58/53 

223

TIMBER FRAME WITH ONE LAYER BGC WET AREA FIREBOARD 

60/60/60 BOUNDARY WALL 


FRAMING 



16mm 

TIMBER FRAME WITH TWO LAYERS BGC WET AREA FIREBOARD 





2 Nails at 300mm max 

centres 1 screw at 

200mm max centres 

At each stud 

Nails at 150mm max 

centres screws at 


Nails at 150mm max 

centres screws at 


SCREW TYPE 

No 6 Type W 


FRAMING 



16mm 


FIRST LAYER 








in stagered pattern 




max. centres 

At Each Stud 






at 300mm max. 

centres 

SCREW TYPE 

No 6 Type W 


SECOND LAYER 

LOCATION 



Butt Joints 


SCREW LENGTH 

1ST LAYER 

45mm 

LOCATION 



Butt Joints 



Butt Joints 


SCREW LENGTH 

1ST LAYER 

45mm 



83


84 



STEEL FRAME WITH ONE LAYER BGC WET AREA FIREBOARD 


STEEL FRAME WITH TWO LAYERS BGC WET AREA FIREBOARD 





At Each Stud 


300mm max.centres 


FRAMING 


0.8mm 


to 1.6mm 


16mm 

16mm 

SCREW TYPE 








At Each Stud 


300mm max.centres 


FRAMING 


0.8mm 


to 1.6mm 


16mm 

16mm 

SCREW TYPE 



LOCATION 



Butt Joints 



FIRST LAYER 

SECOND LAYER 

SCREW LENGTH 

1ST LAYER 

30mm 

32mm 

LOCATION 



Butt Joints 



Butt Joints 


SCREW LENGTH 

1ST LAYER 2ND LAYER 

30mm 45mm 

32mm 

45mm

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

FLOOR / CEILING 

TIMBER OR STEEL JOISTS 

19mm TONGUE & GROOVE PARTICLEBOARD FLOORING 

MIN CAVITY DEPTH OF 190mm 

Ceiling Lining 1 x 13mm BGC Plasterboard 

CAVITY INFILL 

Nil 






CAVITY INFILL 

Nil 





Ceiling Lining 1 x 10mm BGC Ceilingboard 

CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

39/33 

40/36 

40/36 

Rw/Rw+Ctr 

41/35 

42/39 

42/39 

Rw/Rw+Ctr 

37/31 

39/35 

39/35 

C001 

C002 

C003 


07 / CEILING INFORMATION 

85

BGC FIRE & ACOUSTIC / MARCH 2013 07 / CEILING INFORMATION 

86 



FRL 

- / - / - 

FRL 

90 / 90 / 90 

FRL 

30 / 30 / 30 



Ceiling Lining 2 x 10mm BGC Soundboard TM 

CAVITY INFILL 

Nil 



CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

41/36 

42/39 

42/39 



Ceiling Lining 1 x 13mm BGC Fireboard (against frame) 


Rw/Rw+Ctr 

43/38 

44/41 

44/41 



Ceiling Lining 1 x 16mm BGC Fireboard 

CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

40/35 

40/38 

40/38 

C004 

C005 

C018

FRL 

90 / 90 / 90 

FRL 

120 / 120 / 120 






CAVITY INFILL 

Nil 






CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

43/38 

44/41 

44/41 

Rw/Rw+Ctr 

45/40 

46/44 

46/44 

C006 

C007 



87


88 


TIMBER OR STEEL JOISTS WITH FURRING CHANNELS TIMBER OR STEEL 

JOISTS WITH FURRING CHANNELS 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 


WITH FURRING CHANNELS MIN CAVITY DEPTH OF 206mm 

Ceiling Lining 1 x 10mm BGC Ceilingboard 

CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

39/33 

42/38 

42/38 




CAVITY INFILL 

Nil 



CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

40/34 

43/39 

43/39 



Ceiling Lining 1 x 6mm BGC Duraliner TM 

(furring channel at 450mm max centres) 

Rw/Rw+Ctr 

40/33 

43/39 

43/39 

C010 

C011 

C012

FRL 

- / - / - 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 


TIMBER OR STEEL JOISTS WITH FURRING CHANNELS 




CAVITY INFILL 

Nil 



CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

43/37 

45/41 

45/41 




CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

43/38 

46/43 

46/43 





Rw/Rw+Ctr 

44/39 

47/44 

47/44 

C013 

C014 

C015 



89


90 



FRL 

90 / 90 / 90 

FRL 

120 / 120 / 120 




CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

44/39 

47/44 

47/44 




CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

46/41 

49/47 

49/47 

C016 

C017

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 



AND ACOUSTIC RESILIENT MOUNTS 


WITH FURRING CHANNELS AND ACOUSTIC RESILIENT MOUNTS 



CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

42/34 

49/42 

50/43 

Rw/Rw+Ctr 

42/34 

49/42 

50/43 

Rw/Rw+Ctr 

47/38 

54/48 

55/49 

C020 

C021 

C022 



91


92 



AND ACOUSTIC RESILIENT MOUNTS 

FRL 

90 / 90 / 90 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 






CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

48/39 

55/49 

56/50 

Rw/Rw+Ctr 

48/39 

55/49 

56/50 

Rw/Rw+Ctr 

49/41 

56/49 

56/50 

C023 

C024 

C025

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 

ROOF / CEILING 

TIMBER TRUSSES 

PITCHED TILED ROOF WITH OR WITHOUT 350g/m 2 SARKING 

OR SHEETMETAL ROOF WITH MIN 50mm INSULATION OVER 

BATTENS MAX JOIST OR TRUSS SPACING AT 600mm 


CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

41/32 

42/32 

Rw/Rw+Ctr 

- 

45/36 

45/37 

Rw/Rw+Ctr 

- 

41/32 

42/32 

C030 

C031 

C032 



93


94 



FRL 

- / - / - 

FRL 

60 / 60 / 60 

FRL 

90 / 90 / 90 





CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

42/34 

43/34 





CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

45/37 

46/38 






CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

46/38 

47/39 

C033 

C037 

C034

FRL 

90 / 90 / 90 

FRL 

120 / 120 / 120 



PITCHED TILED ROOF WITH OR WITHOUT 350g/m 2 SARKING OR 

SHEETMETAL ROOF WITH MIN 50mm INSULATION OVER BATTENS 

MAX JOIST OR TRUSS SPACING AT 600mm 


CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

46/38 

46/38 





CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

48/41 

48/40 

C035 

C036 



95


96 


FURRING CHANNELS 

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

- / - / - 



BATTENS WITH FURRING CHANNELS 


CAVITY INFILL 

Nil 



PITCHED TILED ROOF WITH OR WITHOUT350g/m 2 SARKING 




CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

40/31 

40/31 

Rw/Rw+Ctr 

- 

43/34 

43/34 

Rw/Rw+Ctr 

- 

44/37 

44/36 

C040 

C041 

C042

FRL 

- / - / - 

FRL 

90 / 90 / 90 

FRL 

90 / 90 / 90 







(Furring channels at 450 max centres) 

CAVITY INFILL 

Nil 








CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

41/32 

41/32 

Rw/Rw+Ctr 

- 

48/41 

48/41 

Rw/Rw+Ctr 

- 

48/41 

48/41 

C043 

C044 

C045 



97


98 



FRL 

120 / 120 / 120 



WITH FURRING CHANNELS 


CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

50/42 

51/43 

C046

FRL 

- / - / - 

FRL 

- / - / - 

FRL 

90 / 90 / 90 


FURRING CHANNELS AND ACOUSTIC RESILIENT MOUNTS 





CAVITY INFILL 

Nil 







CAVITY INFILL 

Nil 








CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

44/35 

45/35 

Rw/Rw+Ctr 

- 

49/38 

50/39 

Rw/Rw+Ctr 

- 

50/40 

51/40 

C050 

C051 

C052 



99


100 


FURRING CHANNELS AND ACOUSTIC RESILIENT MOUNTS 

FRL 

90 / 90 / 90 

FRL 

120 / 120 / 120 

PITCHED TILED ROOF WITH OR WITHOUT 350g/m SARKING OR 




CAVITY INFILL 

Nil 



PITCHED TILED ROOF WITH OR WITHOUT 350g/m SARKING OR 




CAVITY INFILL 

Nil 



Rw/Rw+Ctr 

- 

50/40 

52/41 

Rw/Rw+Ctr 

- 

53/43 

54/44 

C053 

C054

STEEL OR TIMBER WITH ONE OR TWO LAYERS OF BGC FIREBOARD – 

NAIL OR SCREW FIXING 

Note: Refer to page 10 for screw lengths. 

NOTE: 

One layer systems 

to be fixed as per 

2nd layer. Butt joints 

between framing are to 

be fully back blocked 

and fixed with 

laminating screws. 


CEILING 

FIXING SPECIFICATIONS ONE OR TWO 

LAYERS OF BGC FIREBOARD- 


FIRST LAYER 

FASTENER SPACING LOCATION 

Each framing member at 

10 to 16mm from sheet 

edges and at 200mm 

max centres 



Cornice finish - 200mm 

max centres. Set finish - 


Framing at 450mm - 


Framing at 600mm - 

within 50mm of centre 

line between framing 

& fix to ist layer with 

laminating screws at 






SECOND LAYER 


Butt Joints 

Openings 

Sheet ends 

Butt Joints 

Openings 

Sheet ends 



101


102 


CEILING 

STEEL OR TIMBER WITH THREE LAYERS OF BGC FIREBOARD – 


FIXING SPECIFICATIONS THREE OF 

BGC FIREBOARD - NAIL OR SCREW FIXING 

FIRST LAYER 


LOCATION 



Cornice finish - 


Set finish - 150mm 

max centres 

Each framing member 

at 10 to 16mm from sheet 


max centres 



Cornice finish - 


Set finish - 150mm 

max centres 

Each framing member at 

10 to 16mm from sheet 


max centres 

Within 50mm of centre 

line between framing & 

fix to previous layer with 

laminating screws at 






SECOND LAYER 

THIRD LAYER 


Butt Joints 

Openings 

Sheet ends 


Butt Joints 

Openings 

Sheet ends 


Butt Joints 

Openings 

Sheet ends 

Note: Refer to page 10 for screw lengths.



• Steel angle fixed to the soffit or wall junction. 

• Universal Encasement Clips friction fitted 

to the remaining column/beam flanges. 

• Wall Furring Track is held in the back tongue of the clip. 

• Noggings at each end of the column/beam 

and behind plasterboard butt joins in 

single layer systems. 

FRL SYSTEM NO. LININGS 

30/-/- 

60/-/- 

90/-/- 

90/-/- 

120/-/- 

180/-/- 

CB01 

CB02 

CB03 

CB04 

CB05 

CB06 







COLUMN OR BEAM 


08 / COLUMNS / BEAMS / PENETRATIONS 

103


COLUMN OR BEAM 



FRL SYSTEM NO. LININGS 

08 / COLUMNS / BEAMS / PENETRATIONS 104 

30/-/- 

60/-/- 

90/-/- 

120/-/- 

180/-/- 

CB07 

CB08 

CB09 

CB10 

CB11 





4 x 16mm BGC Fireboard

Special design considerations apply to 

Fire Rated walls in order to maintain the 

Fire Rating (FRL) of a system. 

• Electrical penetrations must not be placed 

back to back or more than one penetration 

per stud spacing. 

• Proprietary Fire Rated switch boxes are 

to be used. 

• BGC Plasterboard recommends the use of 

min R1.5 insulation batt be included in the 

wall cavity to assist in maintaining acoustic 

integrity. 

• All penetrations shall be sealed with an 

approved AS/NZS 1530.4 Fire Rated mastic 

filler. See Figure 1. 

• Where plumbing penetrations are required - 

all pipework must be self supporting. 

FIGURE 1 

Pipe Penetration Through Wall (copper) 

Backing rod 

(not fire rated) 

BGC 

Fireboard 

FIGURE 2 

Pipe Penetration Through Ceiling 

6mm 

Wire mesh 

flame guard 

n 

15mm Mi 

100mm Max 

(copper) pipe 

Fire rated mastic filler 

Fire rated 

mastic filler 

Pipewor 

(152mm 

max diam 

20mm 

I.B.S. Fyreguard 

foam 50 x 20 

BGC Fireboard 

k 

) 

PENETRATIONS 

TYPICAL 

FIGURE 3 

Control Joint - Wall Frame Double Layer 

Fire rated mastic 

Min depth 15mm 

Rondo P53 

control joint 

typical 

FIGURE 4 

Control Joint - Wall Frame Single Layer 



Rondo P53 

control joint 

typical 

FIGURE 5 

Control Joint - Wall Frame 



FIGURE 6 

Electrical Penetration Through Wall (Typical) 

Note: Do not place switch boxes back to back. 

Proprietery fire 

rated switch box 

installed to 

manufacturers 

recommendations 


15 mm 

15 mm 

10 mm 

BGC Fibre Cement sheeting 


Backing rod 

20 mm min 

Top and 

bottom track is 

discontinuous 

Additional stud 

required at control joint 


Backing rod 

Backing rod 

15 mm min 



discontinuous 






discontinuous 






08 / COLUMNS / BEAMS / PENETRATIONS 

105

BGC FIRE & ACOUSTIC / MARCH 2013 08 / COLUMNS / BEAMS / PENETRATIONS 

106 

PENETRATIONS 

TYPICAL 

FIRE PENETRATIONS FOR SINGLE, DOUBLE & STAGGERED 

STUD WALLS - ELEVATION

WARRANTY 

We warrant that our products are free from defects caused by faulty 

manufacture or materials for a period of 15 years from the date of 

purchase. If you acquire any defective products, we will repair or 

replace them, supply equivalent replacement products or refund the 

purchase price within 30 days of receiving a valid claim subject to 

product inspection and confirmation of the existence of a defect by 

BGC. We will bear the cost of any such repair, replacement or refund. 

This warranty is given by: 

BGC Plasterboard Pty Ltd 

Ground Floor, 290 Bushmead Rd, Hazelmere, WA 6055 

Phone: (08) 9374 2900 Fax: (08) 9374 2901 

To claim under this warranty, you must provide proof of purchase as 

a consumer and make a written claim (including any costs of claiming) 

to us at the address specified above within 30 days after the defect was 

reasonably apparent, or if the defect was reasonably apparent prior to 

installation, the claim must be made prior to installation. You may not 

claim under this warranty for loss or damage caused by: 

• faulty or incorrect installation by non-BGC installers (BGC’s installation 

procedures are at www.bgc.com.au/plasterboard); 

• failure to comply with the Building Code of Australia or any applicable 

legislation, regulations approvals and standards; 

• products not made or supplied by BGC; 

• abnormal use of the product; or 

• normal wear and tear. 

The benefits available under this warranty are in addition to other rights 

and remedies of the consumer under the law. Our goods come with 

guarantees that cannot be excluded under the Australian Consumer 

Law. You are entitled to a replacement or refund for a major failure and 

for compensation for any other reasonably foreseeable loss or damage. 

You are also entitled to have the goods repaired or replaced if the goods 

fail to be of acceptable quality and the failure does not amount to a 

major failure. 


107

CONTACT 

ADELAIDE 

TELEPHONE 

08 8250 4962 

BRISBANE 

TELEPHONE 

07 2371 1711 

MELBOURNE 

TELEPHONE 

03 9392 9444 

PERTH 

TELEPHONE 

08 9334 4900 

SYDNEY 

TELEPHONE 

02 9771 9660 

NEW ZEALAND 

TELEPHONE 

0011 64 9264 1457 

Australian Owned & Manufactured 

www.bgc.com.au/plasterboard www.bgcinnovadesign.com.au

Fire and Acoustic Guide - BGC

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