Ul 521 Floor Assembly

For the most up to date information or assembly options refer to the ul fire resistance directory.

Ul 521 floor assembly.

Use of floor ceiling designs for roof ceiling or reverse. Floor topping thickness shall be a min of 1 1 2 in. Finish rating 91 or 98 min. 32 mm hacker industries inc firm fill scm 400 quiet qurl 60 040 alternate floor mat materials optional floor mat material nom 3 4 in.

25mm hacker industries inc type firm fill scm 250 quiet qurl 55 025. Floor topping thickness shall be a min of 1 in. 406 mm 1 4 76 mm 0 3. Refer to the ul fire resistance directory for information regarding product orientation and fastening requirements.

See floor and roof topping mixtures ccox category for names of classified companies. Estimated range of acoustical performance is based on laboratory test data of similarly constructed assemblies. M521 november 13 2019 unrestrained assembly rating 2 hr. Floor topping thickness shall be a min of 3 4 in.

See item 6 this design was evaluated using a load design method other than the. Ul bxuv guideinfo section iii 19 includes the following. 19 mm thick loose laid o ver the subfloor. Class a b or c prepared roof coverings may be used on wood floor designs without a reduction of the fire resistance rating provided a nailer of equal thickness to the length of the mechanical fasteners is added to the flooring.

L521 system 4 notes. Here we present the components of fire rated ul designs for wood framed floor ceilings and the requirements needed for meeting sound control per section 1207 of the international building code ibc. Fire rated assemblies for multifamily floors have a number of requirements as well as options to consider. Floor mat materials optional floor mat material nom 1 8 in.

19mm hacker industries inc firm fill scm 125 alternate floor mat materials optional floor mat material nom 1 4 in. February 19 1999 ansi approved. One layer 5 8 thick gypsum board ul type ulix assembly ul design no. 6mm thick loose laid over the subfloor.

Floor topping thickness shall be a min of 1 1 4 in. Discover monokote products ul designs thickness and more about floor assemblies.