In fact there is no.
1 hr rated roof ceiling assembly.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Determine the existing or planned building elements including structural.
The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.
Roof ceiling and attic separation.
12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
With 1 25 mm type s drywall screws 12 305 mm o c.
Urb concealed grid system and tile.
Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm.
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.
Ibc section 703 3 item 2.
Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.
Concrete with cellular steel 3 hr.
I am looking for a 1 hour roof ceiling assembly for wood truss construction.
Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.
Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.
For complete information on the listed systems the actual listing or test report should be reviewed.
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 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.
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.
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.
Establish the hourly rating needed to meet code requirements.
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.
Is this possible without using channels and what ul number would i use.
