Frank Karp
Member
First time doing a 3-story, 5A hotel - wow. We have most of it figured out, but can't find a 1 hour assembly to protect a primary steel beam. All 3 UL assemblies show steel/conc composite deck. We have plywood floor sheathing with 3/4" concrete topping using UL No. L570. Where else can I search? Or am I missing something? Must be fairly common. Thanks.