Mount a 1 1 2 inch fiberglass barrier inside the studs.
2 hour fire rated wall assembly.
Accepts no responsibility for proper application of the rated wall assembly above or responsibility for the construction of such assemblies.
American softwood lumber standard ps 20.
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.
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.
Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.
Line or at the parapet and at the ends of walls.
The fire rating of the wall assembly is the lower of the two.
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.
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.
2 hour exterior wall assembly ul design no.
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.
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.
Descriptions of successfully tested i joist floor as.
Use special fiberglass rated for use in firewalls.
For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in.
Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies.
When you cannot maintain a minimum 3 4 in.
19 1 mm air space between the h stud assembly and any adjacent framing members.
Concrete masonry unit.
There are many ways to meet the requirements for 2 hour fire rated separation walls including foundation to roof masonry walls separating the units.
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.
