Raised Floor Assembly For One Hour Fire Rating

Firefree 88 assemblies by building material with 1 2 hour fire ratings.

Raised floor assembly for one hour fire rating.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Urb concealed grid system and tile. 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.

Fire rated wall floor and ceiling assemblies provide the necessary fire and smoke barriers to create compartmentalization during a fire safeguarding against the spread of fire and smoke within a building or to and from a building. 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. Concrete with cellular steel 3 hr. I cannot find a ul assembly but you could use the prescriptive fire resistance method per ibc 2006 section 720.

These assemblies need to meet fire and smoke safety and environmental sustainability requirements. 2 x 8 f d joists 16 o c span 12 14 live load 40lbs 3 layers 1 x wood wf201. Slab with siliceous aggregate and 3 4 minimum cover requires 5 thickness oops not 4 5 sorry to achieve 2 hour rating. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies.

Floor joists vary in depth but maintain 16 o c or less. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly. Assembly ff file no.

Also see table 721 2 3 3 for cover for various widths of beams. Substrate roof floor ceiling time. Trying to use section 721 6 1 of the ibc to acheive a 1 hour rating of existing floor assemblies in 20 buildings by using only 1 layer of 5 8 drywall. Also see table 721 2 2 1.