One Hour Roof Ceiling Assembly

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.

One hour roof ceiling assembly.

1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panels applied perpendicular to rigid furring channels 24 610 mm o c. With 1 25 mm type s drywall screws 12 305 mm o c. Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.

2 x 8 f d joists 16 o c 1 layer 3 4 bead board ceiling span 17 18 live load 40 lbs. 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. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

Urb concealed grid system and tile. Is this possible without using channels and what ul number would i use. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 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.

These listings are short summaries to serve as a. Ibc section 703 3 item 2. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Type x gypsum wallboard 4 ft.

Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. Prescriptive designs ibc table 721 3 item 21 1 1 describes a single prescriptive 1 hour rated floor or roof assembly that includes wood trusses. 2 1 3 4 2. One hour roof ceiling assembly.

Gypsum board end joints located midway between continuous channels and attached to additional pieces of channel 54 1372 mm long with screws at 12 305. O c double top plates single bottom plate. Sheathing 5 8 in. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control.

Substrate roof floor ceiling time assembly ff file no. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. Roof ceiling and attic separation. For complete information on the listed systems the actual listing or test report should be reviewed.

Concrete with cellular steel 3 hr. No minimum joist size is given except that it needs to be adequate for structural loads.