2 Hour Fire Rated Wood Roof Assembly

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.

2 hour fire rated wood roof assembly.

Substrate roof floor ceiling time assembly ff file no. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

The fire resistance rating of a wood frame assembly is equal to the sum of. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Urb concealed grid system and tile. 2 x 6 f d joists 16 o c.

5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c. 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. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Assemblies include ducts dampers lighting or other fixtures in the tested assembly.

2x4 16 o c. 3 mineral wool batts. Concrete with cellular steel 3 hr. 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.

722 6 2 1 fire resistance rating of wood frame assemblies. 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. Manufactures intumescent coatings that are ibc nfpa code compliant for astm e119 fire endurance ratings that require 1 or 2 hour fire protection in accordance with ul 263 astm e119 can ulc s101 and iso 834 standards. W 1 x 8 wood planking 2 layers 1 2 plywood span 10 live load 40lbs.

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. Sheathing on both sides. 2 fire rated wood frame wall and floor ceiling assemblies. See full report for details.

Assemblies rated from both sides.