2 Hour Fire Rated Wall Construction

25 4 mm shaftliner panels friction fit between studs and a minimum 3 4 in.

2 hour fire rated wall construction.

Fire ratedfire resistance ratings have long been used by ul astm and building codes to measure the performance of various constructions for fire containment purposes. Penetrations penetrations through fire walls such as for pipes and cables must be. An increasingly common and popular method is the gypsum area separation wall which consists of individual stud framed walls filled with fiberglass insulation for each housing unit which are separated by a special construction that consists of. According to the engineered wood association a one hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures and support its full load for at least one hour after the fire begins.

For this reason a fire rated drywall is sometimes called one hour fire wallboard. American softwood lumber standard ps 20. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Class 2 to 9 buildings.

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. The 2 hour area separation wall system is a 2 hour fire wall consisting of 2 in. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies. All other building classes including.

There are many ways to meet the requirements for 2 hour fire rated separation walls including foundation to roof masonry walls separating the units. Gyprock has developed a broad range of fire rated systems to help specifiers and builders meet the bca requirements with confidence. Mount a 1 1 2 inch fiberglass barrier inside the studs. The bca includes requirements for fire performance of walls and ceilings to help ensure occupant safety in the event of a fire.

Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Fire barrier walls are typically constructed of drywall or gypsum board partitions with wood or metal framed studs. As applied to elements of buildings the fire resistance rating classifies the ability of an assembly to confine and isolate fire within a zone comprised of fire resistance rated. 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.

Descriptions of successfully tested i joist floor as. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. 19 1 mm air space on each side. Use special fiberglass rated for use in firewalls.