UL Floor/Ceiling Assemblies: Approved for use in L-587, L528, L562, L574 and L585 UL Roof/Ceiling Assemblies: Approved for use in P-556, P533, P545, P547 and P580
UL Floor/Ceiling Assemblies: Approved for use in L-587, L528, L562, L574 and L585 UL Roof/Ceiling Assemblies: Approved for use in P-556, P533, P545, P547 and P580