2 Hour Fire Rated Wood Roof Assembly

5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c.

2 hour fire rated wood roof assembly.

Table 1 one hour fire rated loadbearing wood frame wall assemblies. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. 3 mineral wool batts. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system.

Urb concealed grid system and tile. Roof sheathing deck or slab of a fire resistance rated floor or roof above the ceiling of the corridor shall be permitted to be protected by the use of ceiling materials as required for a 1 hour fire resistance rated floor or roof system. Fire rated suspended ceiling wood truss council of america floor or roof fire notes 1. The fire resistance rating of a wood frame assembly is equal to the sum of.

Sheathing on both sides. 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. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Assemblies rated from both sides. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. These listings are short summaries to serve as a.

1 one hour and two hour rated assemblies that may be used in the roof cavity and that may be constructed with gable end frames. W 1 x 8 wood planking 2 layers 1 2 plywood span 10 live load 40lbs. 722 6 2 1 fire resistance rating of wood frame assemblies. Substrate roof floor ceiling time assembly ff file no.

2 x 6 f d joists 16 o c. This section contains procedures for calculating the fire resistance ratings of walls floor ceiling and roof ceiling assemblies based in part on the standard method of testing referenced in section 703 2. 2 fire rated wood frame wall and floor ceiling assemblies. Concrete with cellular steel 3 hr.

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