Fire Stop Systems Brochure SA727 - USG Corporation

Penetration Fire Tests
Fire Tests UL System Test Criteria Description
Floor/Wall Assembly C-AJ-1020a 2
4
3
5
2
Floor/Wall Assembly C-AJ-5146 a
4B
4
5
3
4B
3
2
A
A
A
Section A–A
3
1
Section A–A
A
2
4A
Caulk-Type Materials
1
20 USG Fire Stop Systems
F-Rating
3 Hr.
T-Rating
1 Hr.
F-Rating
2 Hr.
T-Rating
1/2 & 1 Hr.
1. Concrete floor or wall assembly, minimum 4-1/2� thickness
floor/minimum 6-1/2� wall.
2. Steel sleeve (optional).
3. Metallic pipe:
A Steel pipe:
6� diameter (or smaller) Schedule 10 (or heavier) steel pipe.
B Conduit:
4� diameter (or smaller) electrical metallic tubing (EMT) or 6� diameter
rigid steel conduit.
4. Forming material:
Mineral wool insulation b (minimum 4.0 pcf) firmly packed into the
opening as a permanent form; see table below for minimum required
thickness.
5. Type AS or Type SS:
Minimum thickness of sealant as specified in the table below, applied
within the opening, flush with the top surface of the floor or both
surfaces of the wall.
Maximum Maximum Annular Forming Minimum F T
Pipe EMT Space Material Sealant Rating Rating
Diameter (in.) Thickness Thickness (hours) (hours)
(%) (in.) (in.)
1-1/2 — 3/8 to
2-1/8
2-1/2 2 3 1
6 4 3/8 to
3/4
3-1/2 1 3 0
6 4 3/8 to 1 2-1/2 2 3 0
1. Concrete floor or wall assembly, minimum 4-1/2� thickness.
2. Metallic pipe:
A Steel pipe:
8� diameter (or smaller) Schedule 40 (or heavier) steel.
B Iron pipe:
8� diameter (or smaller) cast or ductile iron.
C Copper pipe:
4� diameter (or smaller) regular (or heavier) copper.
D Copper tubing:
4� diameter (or smaller) Type L (or heavier) copper tubing.
3. Pipe covering:
Nominal 1� thick (or less) glass fiber insulation.
4. Firestop treatment:
Pipe Type Annular Space (in.) T Rating (Hours)
Steel Pipe 1/2 to 1 1
Iron Pipe 1/2 to 1 1
Copper Pipe 3/8 to 1-1/2 1/2
Copper Tubing 3/8 to 1-1/2 1/2
4A Forming material:
Minimum 4� thick mineral wool insulation (minimum 4.0 pcf) firmly
packed into the opening as a permanent form.
4B Type A:
Minimum 1/2� thick sealant applied within opening, flush with the top
of the floor or both sides of the wall.
Note
(a) Refer to the UL Fire Resistance Directory for Through-Penetration Firestop Systems
or contact United States Gypsum Company for complete information. (b) Bearing the UL
Classification Marking.