2 Hr Fire Rated Wall Assembly

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.

2 hr fire rated wall assembly.

American softwood lumber standard ps 20. 2 hour exterior wall assembly ul design no. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Use special fiberglass rated for use in firewalls.

19 1 mm air space cover the h studs and c tracks by gypsum board battens. Table 1 for one hour rated wall assemblies and table 2 for two hour rated wall assemblies. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. Chapter 7 of the international building code ibc refs.

There are many ways to meet the requirements for 2 hour fire rated separation walls including foundation to roof masonry walls separating the units. 19 1 mm air space between the h stud assembly and any adjacent framing members. Head of wall firestop system gypsum board fire trak shadowline. Sw 106 1 hour shaftwall with deflection track.

When you cannot maintain a minimum 3 4 in. 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. V337 2 hour interior wall assembly ul design no. Descriptions of successfully tested i joist floor as.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Concrete masonry is widely specified for fire walls and fire barriers because concrete masonry is noncombustible provides durable fire resistance and is economical to construct. 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. Mount a 1 1 2 inch fiberglass barrier inside the studs.

Ul design u499 w419. For a 2 hour fire rated assembly without the need for battens 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. 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 walls ceiling and floor assemblies.