1 Hour Fire Rated Wood Roof Ceiling Assembly

Architects and contractors can spend a lot of time hunting for miscellaneous fire rated assemblies in wood construction.

1 hour fire rated wood roof ceiling assembly.

Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. What you ll eventually learn is that the easiest place to design your own 1 hour assembly is section 721 6 of the international building code. Assemblies include ducts dampers lighting or other fixtures in the tested assembly. No minimum joist size is given except that it needs to be adequate for structural loads.

W 1 2 plywood span 17 live load 20lbs. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. O c double top plates single bottom plate. Fire rated wood frame wall and floor ceiling assemblies 5 ws4 1 1 one hour fire resistive wood frame wall assembly 2x4 wood stud wall 100 design load astm e 119 nfpa 251.

Ul p533 roof ceiling one layer 5 8 15 9 mm fire shield c ga rc 2603 wallboard attached to 1 2 12 7 mm resilient furring channel spaced 12 o c. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Is this possible without using channels and what ul number would i use. Floor ceiling assemblies here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Urb concealed grid system and tile. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. In fact there is no.

Substrate roof floor ceiling time assembly ff file no. Fire rated suspended ceiling wood truss council of america floor or roof fire notes 1. 2 1 3 4 2. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.

Concrete with cellular steel 3 hr. Framing nominal 2x4 wood studs spaced 16 in. These listings are short summaries to serve as a. 2 x 10 rafters 24 o c.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Floor or roof 1 hour. I am looking for a 1 hour roof ceiling assembly for wood truss construction.

Fire rated assemblies are listed in the fire resistance design manual published by the gypsum association.