Fire-Resistant Assemblies - USG Corporation
Fire-Resistant Assemblies - USG Corporation
Fire-Resistant Assemblies - USG Corporation
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A<br />
45 Minute <strong>Fire</strong>-Rated Construction Loadbearing Acoustical Performance Reference<br />
Construction Detail Description Test Number STC Test Number Index<br />
wt. 5 • 1/2" Sheetrock <strong>Fire</strong>code C Core gypsum panels UL Des U423 47 SA-861001<br />
A-46<br />
4<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c. or U425<br />
Based on 3" mineral wool batt in cavity<br />
1 ⁄2"<br />
1 Hour <strong>Fire</strong>-Rated Construciton<br />
wt. 6 • 5/8" Sheetrock <strong>Fire</strong>code Core gypsum panels or<br />
Fiberock panels<br />
4 – 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
• optional veneer plaster<br />
3 ⁄4"<br />
wt. 9 • 1/2" Sheetrock <strong>Fire</strong>code C Core gypsum panels<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
– RC-1 channel or equivalent one side, spaced<br />
6"<br />
24" o.c.<br />
– face layer joints finished<br />
• optional veneer plaster<br />
wt. 9 • face layer 1/2" dUrock cement board<br />
• base layer 5/8" Sheetrock <strong>Fire</strong>code Core gypsum<br />
5 1 ⁄4"<br />
panels or sheathing, or Fiberock panels<br />
– 3-1/2" 20 gauge struc studs 16" o.c.<br />
– 3" mineral wool batt<br />
• 5/8" Sheetrock <strong>Fire</strong>code Core opposite side<br />
UL Des U423<br />
or U425<br />
UL Des U423<br />
or U440<br />
1-1/2 Hour <strong>Fire</strong>-Rated Construction<br />
wt. 9 • 1/2" Sheetrock <strong>Fire</strong>code C Core gypsum panels<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
UL Des U425 49<br />
5<br />
– face layer joints finished<br />
49<br />
1 ⁄2"<br />
2 Hour <strong>Fire</strong>-Rated Construction<br />
wt. 9 • 5/8" Sheetrock <strong>Fire</strong>code Core gypsum panels or<br />
Fiberock panels<br />
6"<br />
Partitions<br />
Steel Framed<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
– face layer joints finished<br />
– loadbearing up to 100% allowable stud axial<br />
load when min 2" Thermafiber mineral wool<br />
batt is used in stud cavities; otherwise loadbearing<br />
up to 80% allowable steel axial load<br />
(UL Des U423 or U425)<br />
– loadbearing up to 100% allowable stud axial<br />
load (UL Des U423)<br />
• Alternate based on three layers 1/2" Sheetrock<br />
brand <strong>Fire</strong>code C Core gypsum panels, each side<br />
3 Hour <strong>Fire</strong>-Rated Construction<br />
wt. 17 • 1/2" Sheetrock gypsum <strong>Fire</strong>code C Core panels,<br />
each side<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
– face layer joints finished<br />
7<br />
• rating also applies to imperial <strong>Fire</strong>code C Core<br />
gypsum base and veneer finish surface<br />
– load-bearing up to 100% allowable stud axial load<br />
1 ⁄2"<br />
wt. 13 • 3/4" Sheetrock Ultracode Core gypsum panels<br />
– 3-1/2" 20 gauge steel structural studs 24" o.c.<br />
– 3" thermaFiber SAFB<br />
6 – face layer joints finished<br />
1 ⁄2"<br />
17 <strong>USG</strong> <strong>Fire</strong>-<strong>Resistant</strong> <strong>Assemblies</strong><br />
40<br />
41<br />
51<br />
61<br />
<strong>USG</strong>-810519<br />
<strong>USG</strong>-810518<br />
Based on 2" mineral wool batt in cavity<br />
SA-840715<br />
Based on 3-1/2" 16 gauge struc<br />
studs and lateral bracing<br />
SA-830628<br />
Based on 3-1/2" 16 gauge struc studs,<br />
5/8" thick panels, lateral bracing and 3"<br />
mineral wool batt<br />
A-47<br />
A-48<br />
UL Des U473 A-49<br />
UL Des U423<br />
or U425<br />
51<br />
61<br />
<strong>USG</strong>-811009<br />
Based on 2" mineral wool batt<br />
<strong>USG</strong>-810937<br />
Based on 2" mineral wool batt and 6" 20<br />
gauge struc studs<br />
<strong>USG</strong>-81006<br />
Based on 3-1/2" 16 gauge struc<br />
studs and lateral bracing<br />
<strong>USG</strong>-810937<br />
Based on 3-1/2" 16 gauge struc studs,<br />
5/8" thick panels, lateral bracing and 3"<br />
mineral wool batt<br />
A-50<br />
A-51<br />
UL Des U426 A-52<br />
UL Des U490 A-53
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