Interior 2 Hour Fire Rated Wall Detail

This provides a detail very similar to the one allowed in ibc 2015 section 714 4 2 exception 7 for partition walls intersecting floor roof assemblies.

Interior 2 hour fire rated wall detail.

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. 19 1 mm air space between the h stud assembly and any adjacent framing members. 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 incorporating the product or any given piece of the product. When you cannot maintain a minimum 3 4 in.

Mount a 1 1 2 inch fiberglass barrier inside the studs. Rating for both interior and exterior fire expo sure is only required when the wall has a fire separa tion distance of less than 5 feet. Sagan ul w447 is a result of applying previous testing for an exterior wall assembly to a new interior wall assembly. Walls to be tested for exposure to fire from the inside only.

Code recognition of one and two hour wood frame wall systems is also predicated on successful fire and hose stream testing in accordance with astm. For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in. A common detail here includes a double stud at the end of the partition wall where it intersects the fire resistance rated interior or exterior wall. 2 hour fire resistance rating by table 1018 1 applies to.

Use special fiberglass rated for use in firewalls. Differences fire walls. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 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. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. The new fire resistance rated non load bearing metal building interior wall assembly will be acceptable where one or two hour ratings are required by building codes.

2 hour fire wall assembly cad revit details.