Exterior Wall Ul 2 Hour Fire Rated Wall Assemblies

These blocks while allowing for safe means of egress and fire rating should no longer be looked at as just normal grey cmu.

Exterior wall ul 2 hour fire rated wall assemblies.

Sheathing on both sides. Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. Assemblies rated from both sides. To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. These designs are identified in the ul fire. 2 hour exterior wall assembly ul design no. And covered with a single layer fire resistant protective weather retarder paper stapled along each edge at.

Stc description system rating test no. Westbrook block is a proud producer of underwriters laboratories ul approved fire rated cmu in both light weight and normal weight densities in 2 3 and 4 hour configurations. 5 mineral wool batts. Fire rated construction acoustical performance partition applications fire detail physical data description test no.

Table 2 two hour fire rated loadbearing wood frame wall assemblies. Base layer 5 8 15 9 mm densglass fireguard sheathing retardant treated 2 x 6 wood studs 16 406 mm o c. Thick nom 0 65 pcf friction fit in the wall cavity between stud plates and cross bracing. Lp flameblock osb sheathing wall assemblies can reduce the number of components within a wall reducing construction time saving labor costs and increasing the flexibility of the design.

The fire rating of the wall assembly is the lower of the two. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 2x6 24 o c. Faced or unfaced glass fiber insulation 3 1 2 in.

Fire rated assemblies are tested and certified in their entirety. Wd stud 2 layers 5 8 sheetrock brand gypsum n a j panels firecode core outside both sides 5 8 sheetrock brand gypsum panels firecode core inside both sides 2 rows 2 x 4 24 o c base layer. V applied vertically with vertical joints over studs e exterior sheathing. V337 2 hour interior wall assembly ul design no.

Batts and blankets as an option to item 4 when the fire resistance rating is for a fire on the interior face only and the fire resistance rating for the exterior face is not required. These ul and intertek listed fire rated wall assemblies provide benefits to architects engineers builders developers contractors and even homeowners. Typically for an exterior wall with a fire separation distance greater than 5 ft 1 524 mm fire needs be considered on the interior side only.