In fact there is no.
1 hour fire rated wood roof ceiling assembly.
For complete information on the listed systems the actual listing or test report should be reviewed.
5 8 15 9 mm toughrock fireguard c gypsum board applied or 5 8 15 9 mm densarmor plus fireguard c ul l505 only applied perpendicular to resilient channels with 1 25 mm type s screws 12 305 mm o c.
These listings are short summaries to serve as a.
Fire rated wood frame wall and floor ceiling assemblies 5 ws4 1 1 one hour fire resistive wood frame wall assembly 2x4 wood stud wall 100 design load astm e 119 nfpa 251.
I am looking for a 1 hour roof ceiling assembly for wood truss construction.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Stc description system rating test no.
W 1 2 plywood span 17 live load 20lbs.
Ul does not appear to list an assembly as described.
2 1 3 4 2.
1 hour rating floor or roof 24 oc min 12 depth 2 layers 1 2 type x gypsum sheathing min 15 32 wh tsc fca 45 02 wh tsc fca 45 04 ga fc5512 nominal 2x3 24 oc min 10 depth truswal metal truss plates 1 layer 5 8 type x gypsum sheathing min 3 4 nominal 2x3 24 oc min 10 depth truswal metal truss plates fire rated suspended ceiling.
Framing nominal 2x4 wood studs spaced 16 in.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.
Fire rated wood frame wall and floor ceiling assemblies.
Wood joists supporting 1 25 4 mm nominal t g wood subfloor and 1 25 mm nominal wood finish floor or 15.
Is this possible without using channels and what ul number would i use.
I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control.
Concrete with cellular steel 3 hr.
2 x 10 rafters 24 o c.
Wd stud 2 layers 5 8 sheetrock brand gypsum n a j panels firecode core outside both sides 5 8 sheetrock brand gypsum panels firecode core inside both sides 2 rows 2 x 4 24 o c base layer.
One hour one hour engineered load bearing wall assembly assembly w60 s 1 1.
Roof ceiling and attic separation.
Ibc section 703 3 item 2.
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.
Urb concealed grid system and tile.
Substrate roof floor ceiling time assembly ff file no.
12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
O c double top plates single bottom plate.
