These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies.
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.
Line or at the parapet and at the ends of walls.
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.
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.
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.
Mount a 1 1 2 inch fiberglass barrier inside the studs.
There are many ways to meet the requirements for 2 hour fire rated separation walls including foundation to roof masonry walls separating the units.
For this reason a fire rated drywall is sometimes called one hour fire wallboard.
When you cannot maintain a minimum 3 4 in.
For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in.
Use special fiberglass rated for use in firewalls.
19 1 mm air space between the h stud assembly and any adjacent framing members.