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.
Ul 521 floor assembly.
Floor topping thickness shall be a min of 3 4 in.
Floor topping thickness shall be a min of 1 1 2 in.
6mm thick loose laid over the subfloor.
Ul standard ul 521 edition 7 standard for heat detectors for fire protective signaling systems edition date.
Use of floor ceiling designs for roof ceiling or reverse.
Discover monokote products ul designs thickness and more about floor assemblies.
For the most up to date information or assembly options refer to the ul fire resistance directory.
February 19 1999 ansi approved.
One layer 5 8 thick gypsum board ul type ulix assembly ul design no.
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.
Estimated range of acoustical performance is based on laboratory test data of similarly constructed assemblies.
For the most up to date fire resistance ratings refer to the ul online certifications directory ul l521.
Refer to the ul fire resistance directory for information regarding product orientation and fastening requirements.
M521 november 13 2019 unrestrained assembly rating 2 hr.
19 mm thick loose laid o ver the subfloor.
25mm hacker industries inc type firm fill scm 250 quiet qurl 55 025.
19mm hacker industries inc firm fill scm 125 alternate floor mat materials optional floor mat material nom 1 4 in.
L521 system 4 notes.
406 mm 1 4 76 mm 0 3.
Ul bxuv guideinfo section iii 19 includes the following.
Floor topping thickness shall be a min of 1 in.
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.
Finish rating 91 or 98 min.
Floor topping mixture bearing the ul classification marking as to fire resistance with a minimum compressive strength of 1500 psi.
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.
