1 Hour Fire Rated Roof Ceiling Assembly

15 9 mm t g plywood floor sheathing.

1 hour fire rated roof ceiling assembly.

The fire resistance rating of a wood frame assembly is equal to the sum of. 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. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr.

Generic fire rated assembly listing construction elements 1 5 hr rating 1 hour notes 1. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Two types of fire rated construction assemblies pertain to acoustical ceiling systems. 2 x 8 f d joists 16 o c 1 layer 3 4 bead board ceiling span 17 18 live load 40 lbs.

Roof ceiling assemblies ceiling system lighting hvac outlets and other penetrants through the ceiling the plenum roof support structure and roof assembly including deck insulation and roofing system. 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. 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. Assemblies include ducts dampers lighting or other fixtures in the tested assembly.

Concrete with cellular steel 3 hr. 722 6 2 1 fire resistance rating of wood frame assemblies. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Substrate roof floor ceiling time assembly ff file no.

Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base. Urb concealed grid system and tile. 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. Ul p533 roof ceiling one layer 5 8 15 9 mm fire shield c ga rc 2603 wallboard attached to 1 2 12 7 mm resilient furring.

Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.