1 Hour Fire Rated Roof Ceiling Assembly

Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1.

1 hour fire rated roof ceiling assembly. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. You can use only the specific type size and. 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. Ul tests rate an entire assembly. No ceiling or suspension system product alone constitutes a fire rated assembly. Elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies.

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 incorporating the product or any given piece of the product. Concrete with cellular steel 3 hr. Urb concealed grid system and tile. Supply air and return air ducts are installed through the roof and to the roof top units.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Several roof top units are located on the roof. Assemblies include ducts dampers lighting or other fixtures in the tested assembly. 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.

Substrate roof floor ceiling time assembly ff file no. The fire resistance rating of a wood frame assembly is equal to the sum of. See full report for details. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 2 x 8 f d joists 16 o c 1 layer 3 4 bead board ceiling span 17 18 live load 40 lbs.