1 Hour Fire Rated Wood Roof Ceiling Assembly

Wood joists supporting 1 25 4 mm nominal t g wood subfloor and 1 25 mm nominal wood finish floor or 15.

1 hour fire rated wood roof ceiling assembly.

Concrete with cellular steel 3 hr. 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. Fire rated wood frame wall and floor ceiling assemblies. 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 construction acoustical performance partition applications fire detail physical data description test no. I would like to apply the drywall directly to the bottom of the truss and also have insulation for sound control. Is this possible without using channels and what ul number would i use.

These listings are short summaries to serve as a. W 1 2 plywood span 17 live load 20lbs. In fact there is no. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

2 1 3 4 2. O c double top plates single bottom plate. 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. 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.

Ul does not appear to list an assembly as described. For complete information on the listed systems the actual listing or test report should be reviewed. Urb concealed grid system and tile. 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. Ibc section 703 3 item 2. Roof ceiling and attic separation. One hour one hour engineered load bearing wall assembly assembly w60 s 1 1.

2 x 10 rafters 24 o c. Substrate roof floor ceiling time assembly ff file no. I am looking for a 1 hour roof ceiling assembly for wood truss construction. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.