1 Hr Rated Roof Ceiling Assembly

Urb concealed grid system and tile.

1 hr rated roof ceiling assembly.

12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. 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. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Floor ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum structural system subfloor and finish floor.

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. Ul does not appear to list an assembly as described. 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.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 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 section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly. Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.

Selecting the right ul fire rated assembly. Roof ceiling and attic separation. No minimum joist size is given except that it needs to be adequate for structural loads. Determine the existing or planned building elements including structural.

Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. With 1 25 mm type s drywall screws 12 305 mm o c. Concrete with cellular steel 3 hr. Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm.

I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Is this possible without using channels and what ul number would i use. 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. Ibc section 703 3 item 2.

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. In fact there is no.