1 Hr Rated Roof Ceiling Assembly

Ul does not appear to list an assembly as described.

1 hr rated roof ceiling assembly.

Concrete with cellular steel 3 hr. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

Establish the hourly rating needed to meet code requirements. With 1 25 mm type s drywall screws 12 305 mm o c. 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. Is this possible without using channels and what ul number would i use.

Selecting the right ul fire rated assembly. Urb concealed grid system and tile. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. For complete information on the listed systems the actual listing or test report should be reviewed.

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. 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. 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. Ibc table 722 6 2 2 allows 10 minutes for wood floor or roof joists at 16 o c.

I am looking for a 1 hour roof ceiling assembly for wood truss construction. Roof ceiling and attic separation. Ibc section 703 3 item 2. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 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. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

Determine the existing or planned building elements including structural. In fact there is no. No minimum joist size is given except that it needs to be adequate for structural loads.