Interior Wall Ul 2 Hour Fire Rated Wall Assemblies

The new fire resistance rated non load bearing metal building interior wall assembly will be acceptable where one or two hour ratings are required by building codes.

Interior wall ul 2 hour fire rated wall assemblies.

The fire rating of the wall assembly is the lower of the two. Lumber shall be identified by the grade mark of a lumber grading or inspection agency that has been approved by an accreditation body that complies with the. Ul design u419 1 2 3 or 4 hour wall assembly installation instructions. These designs are identified in the ul fire.

Stc description system rating test no. The american society for testing and materials and underwriters laboratory both have specifications for. Two hour or any other fire resistance or protection rating and therefore as acceptable for use in certain fire rated assemblies systems does not mean that either a particular assembly system incorporating the product or any given piece of the product itself will necessarily provide one hour fire. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

Fire rated assemblies are tested and certified in their entirety. Use steel studs and two layers of 1 2 inch type c drywall on each side of the studs for a two hour fire rating on an interior wall. To confine and isolate fire within a zone comprised of fire resistance rated walls ceiling and floor assemblies. American softwood lumber standard ps 20.

Mount a 1 1 2 inch fiberglass barrier inside the studs. Fire rated construction acoustical performance partition applications fire detail physical data description test no. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies. 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.

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. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Sagan ul w447 is a result of applying previous testing for an exterior wall assembly to a new interior wall assembly. Descriptions of successfully tested i joist floor as.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Users of fire resistance assemblies are advised to consult the general guide information for each product category and each group of assemblies. Use special fiberglass rated for use in firewalls.