F-A-0036
Penetration
Standard UL US and Canada
F-Rating | 3 hrs. | ||
T-Rating | 2 hrs. | ||
Structural element | Concrete floor 4-1/2 in. (115 mm) | ||
Blank seal | 2 layers of Nom. 2-3/8 in. (60 mm) thick mineral wool board min. 9.3 pcf (150 kg/m ) firmly packed into the opening of the floor or wall as a permanent form |