Ul does not appear to list an assembly as described.
1 hr rated roof ceiling 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.
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.
Establish the hourly rating needed to meet code requirements.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr.
Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.
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.
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.
Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.
For complete information on the listed systems the actual listing or test report should be reviewed.
Roof ceiling and attic separation.
The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.
In fact there is no.
Ibc section 722 6 could be used to calculate up to a 1 hour rating for a wood frame wall floor or roof assembly.
Concrete with cellular steel 3 hr.
12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
Urb concealed grid system and tile.
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.
No minimum joist size is given except that it needs to be adequate for structural loads.
With 1 25 mm type s drywall screws 12 305 mm o c.
Is this possible without using channels and what ul number would i use.
Screw fastened perpendicular to lower chord of wood trusses of 2 x 4 38 mm x 89 mm.
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.
Determine the existing or planned building elements including structural.
I am looking for a 1 hour roof ceiling assembly for wood truss construction.
