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UL Ratings:

Walls, Floors and Roof Systems

Type of element
Fire resistance rating
Min. Thickness
Reference
Block Wall - Load Bearing
4 hr
6" Nominal
UL U919
Block Wall - Non-load Bearing
4 hr
4" Nominal
UL U919
Block Wall - Non-load Bearing
2 hr
3" Nominal
UL Engrg Letter
Wall Panel - Load Bearing
4 hr
6" Nominal
UL U920
Wall Panel - Non-load Bearing
4 hr
6" Nominal
UL U920
Wall Panel - T&G Non-load Bearing
4 hr
8" Nominal
UL Engrg Letter
Wall Partition - Non-load Bearing
3 hr
4" Nominal
ASTM E 119
Floor & Roof Panels
4 hr
6" Nominal
UL K909 & P932
Attached to Non-load Bearing Studs
2, 3, 4 hr
See Graphics
Attached to Load Bearing Studs
1, 1-1/2, 2 hr
See Graphics
Steel Column Protection
4hr
4' Block or 8' Panel
UL X901


Through-Penetration Systems

 
F Rating
T Rating
UL Number
Single Commodity
4
0
C-BJ-1037
Two Commodities
4
0
W-J-8009
Mulitple Commodities
3
0
C-BJ-8010


Joint Systems
Rating
UL System Number
Floor-to-Floor Joint
3 hr
FF-D-0018 & FF-D-0020
2 hr
FF-D-0017
1 1/2 hr
FF-D-0019
Floor-to-Wall Joint
3 hr
FW-D-0013 & FW-D-0015
2 hr
FW-D-0012
1 1/2 hr
FW-D-0014
Head of Wall Joint
3 hr
HW-D-0166 & HW-D-0177
Wall-to-Wall Joint
3 hr
WW-D-0023 & WW-D-0024

 

  

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