Raised Floor Assembly For One Hour Fire Rating

Slab with siliceous aggregate and 3 4 minimum cover requires 5 thickness oops not 4 5 sorry to achieve 2 hour rating.

Raised floor assembly for one hour fire rating. Firefree 88 assemblies by building material with 1 2 hour fire ratings. Floor joists vary in depth but maintain 16 o c or less. Substrate roof floor ceiling time. Fully tested non toxic high performance fire resistant flame retardant paints.

276 fire rated ceiling assemblies suspension ceiling designs floor ceiling designs a003 3 hr. Also see table 721 2 2 1. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Also see table 721 2 3 3 for cover for various widths of beams.

3 4 fr 83 12 x 12 z runners fluorescent type none 2 1 2 concrete. Assembly ff file no. 2 x 8 f d joists 16 o c span 12 14 live load 40lbs 3 layers 1 x wood wf201. 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.

Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. Concrete with cellular steel 3 hr. Warnock hersey fire resistance rated wall assemblies warnock hersey product listings standards products are certified against astm iso en can cgsb can ulc 1 hour fire resistive rated wall assemblies click the link above each design number below represents a james hardie 1 hour fire resistive wall assembly jh fcs 60 01. 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.

Urb concealed grid system and tile. 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. I cannot find a ul assembly but you could use the prescriptive fire resistance method per ibc 2006 section 720. Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.