2 Hour Fire Rated Wall

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 fire rated wall.

Line or at the parapet and at the ends of walls. 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. For this reason a fire rated drywall is sometimes called one hour fire wallboard. If a conventional 1 2 inch thick sheet of drywall will stand up to 30 minutes of fire then the added 1 8 inch found in the type x drywall along with its other properties will double your margin of safety to 60 minutes.

The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 19 1 mm air space cover the h studs and c tracks by gypsum board battens. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. 19 1 mm air space between the h stud assembly and any adjacent framing members.

Use special fiberglass rated for use in firewalls. When you cannot maintain a minimum 3 4 in. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in.