Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . Horizontal shaftwall duct and ceiling assemblies. Two hour horizontal duct protection. Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Referring to sections 722.6.2.1 and .
Referring to sections 722.6.2.1 and .
Referring to sections 722.6.2.1 and . Two hour horizontal duct protection. Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Horizontal shaftwall duct and ceiling assemblies. 1 hour fire rated ceiling assembly.
Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Two hour horizontal duct protection. Horizontal shaftwall duct and ceiling assemblies. 1 hour fire rated ceiling assembly. Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or .
Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or .
Referring to sections 722.6.2.1 and . Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Two hour horizontal duct protection. Horizontal shaftwall duct and ceiling assemblies. Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . 1 hour fire rated ceiling assembly.
Horizontal shaftwall duct and ceiling assemblies. Referring to sections 722.6.2.1 and . Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . Two hour horizontal duct protection. 1 hour fire rated ceiling assembly.
Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or .
Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . Two hour horizontal duct protection. Horizontal shaftwall duct and ceiling assemblies. Referring to sections 722.6.2.1 and . 1 hour fire rated ceiling assembly.
11+ Awesome 2 Hour Rated Ceiling Assembly - FIRE RATED 4" OCTAGON BOX for Lotus Recessed LED Lights / Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or .. 1 hour fire rated ceiling assembly. Deep (or deeper) lumber, steel or combination lumber and steel joists, trusses or . Two hour horizontal duct protection. Firefree 88 assemblies by building material with 1 & 2 hour fire ratings. Referring to sections 722.6.2.1 and .