1 Hour Fire Rated Roof Ceiling Assembly

2 x 8 f d joists 16 o c 1 layer 3 4 bead board ceiling span 17 18 live load 40 lbs.

1 hour fire rated roof ceiling assembly.

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. 15 9 mm t g plywood floor sheathing. Substrate roof floor ceiling time assembly ff file no. Two types of fire rated construction assemblies pertain to acoustical ceiling systems.

Gypsum wallboard roof ceilings wood framing pitched roof truss 11 1 hr. 276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. 3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. 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.

Urb concealed grid system and tile. 12 x 24 2 x 4 8 w10 x 25 beam floor units and beam support 3 hr. 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. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

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. 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. 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. Concrete with cellular steel 3 hr. 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. 722 6 2 1 fire resistance rating of wood frame assemblies.

Rating also applies with 5 8 15 9 mm fire shield c kal kore plaster base.