1 Hour Fire Rated Wood Roof Ceiling Assembly

Ibc section 703 3 item 2.

1 hour fire rated wood roof ceiling assembly.

In fact there is no. 2 1 3 4 2. Substrate roof floor ceiling time assembly ff file no. Wood joists supporting 1 25 4 mm nominal t g wood subfloor and 1 25 mm nominal wood finish floor or 15.

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. 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. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Fire rated construction acoustical performance partition applications fire detail physical data description test no.

O c double top plates single bottom plate. Ul does not appear to list an assembly as described. Is this possible without using channels and what ul number would i use. Fire rated wood frame wall and floor ceiling assemblies.

Framing nominal 2x4 wood studs spaced 16 in. These listings are short summaries to serve as a. 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.

For complete information on the listed systems the actual listing or test report should be reviewed. W 1 2 plywood span 17 live load 20lbs. Stc description system rating test 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.

I am looking for a 1 hour roof ceiling assembly for wood truss construction. 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. 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. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete.

Urb concealed grid system and tile. Concrete with cellular steel 3 hr. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. Roof ceiling and attic separation.