1 Hour Fire Rated Wood Roof Ceiling Assembly

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

1 hour fire rated wood roof ceiling assembly.

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. In fact there is no. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Architects and contractors can spend a lot of time hunting for miscellaneous fire rated assemblies in wood construction. Assemblies include ducts dampers lighting or other fixtures in the tested assembly.

Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Framing nominal 2x4 wood studs spaced 16 in.

Ul does not appear to list an assembly as described. 6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test. These listings are short summaries to serve as a. Fire rated suspended ceiling wood truss council of america floor or roof fire notes 1.

Floor or roof 1 hour. Concrete with cellular steel 3 hr. Substrate roof floor ceiling time assembly ff file no. 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.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. 2 1 3 4 2. 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.

I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. W 1 2 plywood span 17 live load 20lbs. Urb concealed grid system and tile. 2 x 10 rafters 24 o c.

O c double top plates single bottom plate.