I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control.
1 hour fire rated wood roof ceiling assembly.
One hour one hour engineered load bearing wall assembly assembly w60 s 1 1.
For complete information on the listed systems the actual listing or test report should be reviewed.
Fire rated construction acoustical performance partition applications fire detail physical data description test no.
Stc description system rating test no.
Framing nominal 2x4 wood studs spaced 16 in.
12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.
Substrate roof floor ceiling time assembly ff file no.
276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.
Wood joists supporting 1 25 4 mm nominal t g wood subfloor and 1 25 mm nominal wood finish floor or 15.
Urb concealed grid system and tile.
Is this possible without using channels and what ul number would i use.
Concrete with cellular steel 3 hr.
O c double top plates single bottom plate.
3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.
Ul does not appear to list an assembly as described.
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.
Ibc section 703 3 item 2.
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.
2 1 3 4 2.
6 usg fire resistant assemblies test certification test conditions and fire and sound tested assemblies listed in this selector are based on characteristics properties and performance certificationof materials and systems obtained under controlled test conditions as set forth in the appropriate astm standard in effect at the time of test.
2 x 10 rafters 24 o c.
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 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.
Roof ceiling and attic separation.
These listings are short summaries to serve as a.
In fact there is no.
No 2 or lower grades in the prescriptive 1 hour fire resistance rated wall assemblies listed in table 721 1 2 of the 2012 ibc with the.
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.
