2 Hour Fire Rated Wall Assembly

Concrete masonry unit.

2 hour fire rated wall assembly. There are many ways to meet the requirements for 2 hour fire rated separation walls including foundation to roof masonry walls separating the units. Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. Mount a 1 1 2 inch fiberglass barrier inside the studs. Fire safety caution passing a fire test in a controlled laboratory setting and or certifying or labeling a product as having a one hour 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.

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. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in. V337 2 hour interior wall assembly ul design no.

Accepts no responsibility for proper application of the rated wall assembly above or responsibility for the construction of such assemblies. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies. 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. Descriptions of successfully tested i joist floor as.

American softwood lumber standard ps 20. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 19 1 mm air space cover the h studs and c tracks by gypsum board battens. 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.

2 hour fire rating. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Use special fiberglass rated for use in firewalls. When you cannot maintain a minimum 3 4 in.

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. 2 hour exterior wall assembly ul design no. The fire rating of the wall assembly is the lower of the two.