1 Hr Rated Roof Ceiling Assembly

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.

1 hr rated roof ceiling assembly.

Ul does not appear to list an assembly as described. Urb concealed grid system and tile. In fact there is no. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

For complete information on the listed systems the actual listing or test report should be reviewed. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Gypsum panel end joints located midway between continuous channels and attached to additional pieces of channels 54 1372 mm long with screws 12 305 mm o c. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

Is this possible without using channels and what ul number would i use. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. 1 2 12 7 mm toughrock fireguard c or 1 2 12 7 mm densarmor plus fireguard c gypsum panel applied perpendicular to resilient channels 24 610 mm o c.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. No minimum joist size is given except that it needs to be adequate for structural loads. Ibc section 703 3 item 2.

Establish the hourly rating needed to meet code requirements. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. Determine the existing or planned building elements including structural. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor.

Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. Selecting the right ul fire rated assembly. With 1 25 mm type s drywall screws 12 305 mm o c. 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.

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. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.