1 Hr Rated Roof Ceiling Assembly

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

1 hr rated roof ceiling assembly.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Urb concealed grid system and tile. Selecting the right ul fire rated assembly. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 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. Ibc section 703 3 item 2.

No minimum joist size is given except that it needs to be adequate for structural loads. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. 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. Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.

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. Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm. I am looking for a 1 hour roof ceiling assembly for wood truss construction. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor.

Is this possible without using channels and what ul number would i use. 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. Elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. Concrete with cellular steel 3 hr.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Ul does not appear to list an assembly as described. Roof ceiling and attic separation. For complete information on the listed systems the actual listing or test report should be reviewed.

Establish the hourly rating needed to meet code requirements. With 1 25 mm type s drywall screws 12 305 mm o c. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.