National Gypsum Construction Guide - 12th Edition
National Gypsum Construction Guide - 12th Edition National Gypsum Construction Guide - 12th Edition
Sound and Fire Rated Assemblies SOUND RATINGS Drywall and plaster construction systems are laboratory tested to establish their sound insulation characteristics. Airborne sound insulation is reported as the Sound Transmission Class (STC), whereas impact noise, tested on floor-ceiling systems only, is reported as the Impact Insulation Class (IIC). When selecting systems based on laboratory performance ratings, it should be clearly understood that field conditions such as flanking paths, air leaks, etc. caused by design or workmanship can reduce acoustical performance. For these reasons National Gypsum Company cannot guarantee the performance ratings of specific construction assemblies erected in the field. To achieve maximum sound isolation from an assembly, published construction details must be followed completely. The use of non-hardening, permanent, resilient, acoustical sealant is recommended to seal off air leaks at floor, ceiling, and partition or wall intersections. In selecting a construction system where sound isolation is important it is necessary to take into account the building’s overall structural design, openings, type of occupancy, location and background noise level. The complexity of the proposed system will necessarily affect the final cost and possibly the in-place acoustical performance of the system. The national standard for airborne sound testing, ASTM E 90, measures the sound transmission loss from 125 to 4,000 Hertz. It is measured at 16 one-third octave frequencies. The data measured in ASTM E 90 is then fitted to the STC curve as is specified in ASTM E 413. The STC should not be compared with FSTC values that are obtained from field sound transmission loss tests following ASTM E 336 procedures. The method used to determine FSTC ratings is different and cannot be related to STC ratings achieved by ASTM Method E 90. FIRE RESISTANCE The term “fire-resistance” designates the ability of a laboratory-constructed assembly to contain a fire in a carefully controlled test setting for a specified period of time. Such an assembly might be a partition, a floor/ceiling, a roof/ceiling, or a protected beam or column. The degree that assemblies put together and tested under controlled laboratory conditions retard the spread of damaging heat is measured in intervals of time. For example, if a construction assembly in the laboratory adequately contains the heat for two hours and meets other requirements during the laboratory fire test, it is given a two-hour fire resistance rating. Fire tests may be conducted at any of several recognized facilities. Partitions, floor/ceilings, roof/ceilings, beams and columns are tested in accordance with ASTM Standard E 119, Fire Tests of Building and Construction Materials. Fire-resistance ratings are based on full-scale tests under controlled conditions and are generally recognized by building code authorities and fire insurance rating bureaus. Requirements for fire-resistance ratings are usually assigned by local building code officials based on the expected occupancy of the space. It is critical that you review plans in the bid stage to ensure that the details drawn match the referenced design numbers. If the detail drawn does not match the assembly design number as listed in the Gypsum Association Fire Resistance Design Manual, UL Fire Resistance Directory, or Factory Mututal Specification Tested Products Guide, contact the architect for a clarification. Fire-resistant ratings represent the results of controlled laboratory tests on assemblies made of specific con- 8 NATIONAL GYPSUM SOUND AND FIRE RATED ASSEMBLIES figuration. For that reason, National Gypsum Company cannot guarantee the performance of specific construction assemblies erected in the field. When selecting construction assemblies to meet certain fire-resistance requirements, caution must be used to ensure that each component of the assembly is the one specified in the test. Further, precaution should be taken that assembly procedure is in accordance with that of the tested assembly. For fire safety information, go to www.nationalgypsum.com. CONTROL JOINTS AND ISOLATION DETAILS Though most systems referred to in this manual are nonload-bearing, they need structural consideration of their ability to retain integrity over a period of time and be relatively rigid. When other elements such as doors, fixtures, cabinets, etc., are affixed or joined to a drywall or plaster system, provision must be made to ensure that these loads are adequately supported. Structural framing, completely separate from the system, may be necessary to support eccentric or heavy loads. CONTROL JOINTS Control joints are frequently necessary to prevent cracking in the gypsum board and plaster systems. Isolation should always be considered where structural elements such as slabs, columns, or exterior walls can bear directly on nonload-bearing partitions. Gypsum as well as other building products and materials are subject to some form of movement induced by changes in moisture or temperature, or both. To relieve the stresses which occur as a result of such movement, control joints are required in both partitions and ceilings. Location of control joints is the ultimate responsibility of the design professional. Control joints prevent cracking in large areas of gypsum board. PARTITION CONTROL JOINTS In long expanses of partitions such as corridors, control joints should be used at least every 30'. Door and window openings create stress points in partitions and are recommended locations for control joints. Where jambs extend from floor to ceiling and are spaced not farther apart than 30', no control joints are required. When “through-wall” control joints are required in fire rated assemblies, special details are necessary which are shown on page 96. They are based on Warnock-Hersey Report WHI 651-0318.1. CEILING CONTROL JOINTS For large expanses of ceilings with perimeter relief, control joints must be located a maximum of 50' o.c. in either direction; without perimeter relief, 30' o.c. maximum in either direction. Control joints should be installed where framing or furring changes direction. PERIMETER CONTROL JOINTS Acceptable perimeter control joints in systems do not adversely affect fire or sound ratings. The use of perimeter control joints in fire-rated assemblies is described in UL Report R-4024-7-8 and Factory Mutual Report 16738.69. REQUEST TEST COPIES BY CALLING 1-800-NATIONAL (1-800-628-4662).
QUICK SELECTOR INDEX - FIRE/SOUND Gypsum Plaster – Metal Lath Fire Rating Design No. Page 1-hr OSU T-147 11 1-hr OSU T-129 11 2-hr UL U413 11 2-hr NBS 11 Gypsum Plaster Fireproofing Columns (10WF49 or heavier) Fire Rating Design No. Page 1-hr BMS 92/40 12 2-hr UL X402 12 3-hr UL X402 12 4-hr UL X402 12 Gypsum Plaster Fireproofing Beams (8WF24 or heavier) Fire Rating Design No. Page 2-hr UL R4197-1 12 3-hr UL R4197-1 12 Veneer Plaster Partitions Fire Rating Design No. Page 1-hr U of Cal. E.S.6727 12 1-hr U of Cal. E.S.6892 12 Gypsum Board Partitions – Wood Framing Fire Rating Design No. Page 45 min. UL U317 12 1-hr UL U305 12 1-hr UL U309 13 1-hr UL U340 13 1-hr WHI 694-0200 13 1-hr UL U312 13 2-hr FM WP-360 13 2-hr UL U301 13 1-hr WHI 651-0319 14 2-hr UL U302 13 2-hr UL U371 14 Gypsum Board Partitions – Steel Framing Fire Rating Design No. Page 1-hr OSU T-3296 14 1-hr UL U420 14 1-hr UL V401 14 1-hr UL V438 14 1-hr UL U451 14 1-hr FM WP-45 15 1-hr OSU T-1770 15 1-hr UL U465 15 1-hr UL V452 15 1-hr FM WP-66 15 1-hr FM WP-733 15 1-hr UL U410 16 1 1⁄2-hr OSU T-3240 16 2-hr UL V449 16 2-hr UL V438 16 2-hr UL U420 16 2-hr UL U412 16 2-hr UL U411 16 2-hr WHI 495-0236 16 2-hr UL V452 17 2-hr ITS/WHI J98-32931 17 3-hr UL U435 17 3-hr WHI 694-0084 17 3-hr UL V438 17 4-hr UL U435 17 4-hr WHI 694-108.1 17 4-hr UL V438 17 Gypsum Board Partitions – Steel Framing (load bearing) Fire Rating Design No. Page 1-hr UL U425 18 2-hr FM WP-199 18 2-hr UL U425 18 3-hr UL U426 18 Gypsum Board Partitions/Durasan Prefinished Gypsum Board Fire Rating Design No. Page 1-hr FM WP-109 18 1-hr UL U405 18 2-hr UL U411 18 Gypsum Board Partitions/Solid Fire Rating Design No. Page 1-hr FM WP-671 19 2-hr UL U525 19 2-hr FM WP-668 19 2-hr UL U505 19 2-hr UL U529 19 Gypsum Board Partitions – Shaftwalls, Area Separation Walls Fire Rating Design No. Page 1-hr UL U499 19 1-hr FM WP-755 19 2-hr UL U498 19 2-hr FM WP-545 19 2-hr U of Cal. 75-19 ES 7407 19 2-hr UL U429 19 2-hr UL U497 19 2-hr FM WP-636 19 2-hr WHI 651-0500.05 19 2-hr U of Cal. 75-17 ES 7408 19 2-hr UL U428 20 NATIONAL GYPSUM QUICK SELECTOR/GENERAL REFERENCE 9 GENERAL REFERENCE
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- Page 3 and 4: Charlotte, North Carolina, is the h
- Page 5 and 6: PRODUCT SPECIFICATION DIRECTORY FOR
- Page 7 and 8: GENERAL REFERENCE LATH, DRYWALL JOI
- Page 9: Key to Federal Specification Design
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- Page 37 and 38: Basecoat Plasters DESCRIPTION GOLD
- Page 39 and 40: Gypsum Plaster Base/Wood Framing DE
- Page 41 and 42: Fireproofing Columns and Beams with
- Page 43 and 44: 3/4" C.R. CHANNEL METAL LATH 66 CAS
- Page 45 and 46: 12 TH EDITION Veneer Plaster System
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- Page 51 and 52: DETAILS KAL-KORE KAL-MESH KAL-KOTE
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- Page 55 and 56: Veneer plaster walls are particular
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QUICK SELECTOR INDEX - FIRE/SOUND<br />
<strong>Gypsum</strong> Plaster – Metal Lath<br />
Fire Rating Design No. Page<br />
1-hr OSU T-147 11<br />
1-hr OSU T-129 11<br />
2-hr UL U413 11<br />
2-hr NBS 11<br />
<strong>Gypsum</strong> Plaster Fireproofing Columns<br />
(10WF49 or heavier)<br />
Fire Rating Design No. Page<br />
1-hr BMS 92/40 12<br />
2-hr UL X402 12<br />
3-hr UL X402 12<br />
4-hr UL X402 12<br />
<strong>Gypsum</strong> Plaster Fireproofing Beams<br />
(8WF24 or heavier)<br />
Fire Rating Design No. Page<br />
2-hr UL R4197-1 12<br />
3-hr UL R4197-1 12<br />
Veneer Plaster Partitions<br />
Fire Rating Design No. Page<br />
1-hr U of Cal. E.S.6727 12<br />
1-hr U of Cal. E.S.6892 12<br />
<strong>Gypsum</strong> Board Partitions –<br />
Wood Framing<br />
Fire Rating Design No. Page<br />
45 min. UL U317 12<br />
1-hr UL U305 12<br />
1-hr UL U309 13<br />
1-hr UL U340 13<br />
1-hr WHI 694-0200 13<br />
1-hr UL U312 13<br />
2-hr FM WP-360 13<br />
2-hr UL U301 13<br />
1-hr WHI 651-0319 14<br />
2-hr UL U302 13<br />
2-hr UL U371 14<br />
<strong>Gypsum</strong> Board Partitions –<br />
Steel Framing<br />
Fire Rating Design No. Page<br />
1-hr OSU T-3296 14<br />
1-hr UL U420 14<br />
1-hr UL V401 14<br />
1-hr UL V438 14<br />
1-hr UL U451 14<br />
1-hr FM WP-45 15<br />
1-hr OSU T-1770 15<br />
1-hr UL U465 15<br />
1-hr UL V452 15<br />
1-hr FM WP-66 15<br />
1-hr FM WP-733 15<br />
1-hr UL U410 16<br />
1 1⁄2-hr OSU T-3240 16<br />
2-hr UL V449 16<br />
2-hr UL V438 16<br />
2-hr UL U420 16<br />
2-hr UL U412 16<br />
2-hr UL U411 16<br />
2-hr WHI 495-0236 16<br />
2-hr UL V452 17<br />
2-hr ITS/WHI J98-32931 17<br />
3-hr UL U435 17<br />
3-hr WHI 694-0084 17<br />
3-hr UL V438 17<br />
4-hr UL U435 17<br />
4-hr WHI 694-108.1 17<br />
4-hr UL V438 17<br />
<strong>Gypsum</strong> Board Partitions –<br />
Steel Framing (load bearing)<br />
Fire Rating Design No. Page<br />
1-hr UL U425 18<br />
2-hr FM WP-199 18<br />
2-hr UL U425 18<br />
3-hr UL U426 18<br />
<strong>Gypsum</strong> Board Partitions/Durasan<br />
Prefinished <strong>Gypsum</strong> Board<br />
Fire Rating Design No. Page<br />
1-hr FM WP-109 18<br />
1-hr UL U405 18<br />
2-hr UL U411 18<br />
<strong>Gypsum</strong> Board Partitions/Solid<br />
Fire Rating Design No. Page<br />
1-hr FM WP-671 19<br />
2-hr UL U525 19<br />
2-hr FM WP-668 19<br />
2-hr UL U505 19<br />
2-hr UL U529 19<br />
<strong>Gypsum</strong> Board Partitions –<br />
Shaftwalls, Area Separation Walls<br />
Fire Rating Design No. Page<br />
1-hr UL U499 19<br />
1-hr FM WP-755 19<br />
2-hr UL U498 19<br />
2-hr FM WP-545 19<br />
2-hr U of Cal. 75-19 ES 7407 19<br />
2-hr UL U429 19<br />
2-hr UL U497 19<br />
2-hr FM WP-636 19<br />
2-hr WHI 651-0500.05 19<br />
2-hr U of Cal. 75-17 ES 7408 19<br />
2-hr UL U428 20<br />
NATIONAL GYPSUM QUICK SELECTOR/GENERAL REFERENCE<br />
9<br />
GENERAL<br />
REFERENCE
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