2 Hour Fire Rated Wall Detail

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.

2 hour fire rated wall detail.

2 fire rated wood frame wall and floor ceiling assemblies. 5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c. The american society for testing and materials and underwriters laboratory both have specifications for. Ss 504 1 hour partition corner detail.

3 mineral wool batts. According to the engineered wood association a one hour rating indicates that a wall constructed in a manner similar to the one tested will contain flames and high temperatures and support its full load for at least one hour after the fire begins. Sheathing on both sides. For a 2 hour fire rated assembly without the need for battens 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. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. Corridor walls permitted to have a 1 2hour fire resistance rating by table 1020 1 2.

A partition having an assembly of materials that will afford a given fire resistance rating expressed in hours to impede the spread of fire from one area to another. Use special fiberglass rated for use in firewalls. Table 1 one hour fire rated loadbearing wood frame wall assemblies. Assemblies rated from both sides.

Ss 503 control joints for fire rated systems. When you cannot maintain a minimum 3 4 in. 19 1 mm air space cover the h studs and c tracks by gypsum board battens. 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.

A continuous basement to roof wall having adequate fire resistance rating expressed in hours with an adequate structural stability under fire. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels. 2x4 16 o c.

Head of wall firestop system proform quick set fs 90 compound 1 side ul design u411 v438. Line or at the parapet and at the ends of walls. Dwelling unit and sleeping unit separations in buildings of type iib iiib and vb construction shall have fire resistance ratings of not less than 1 2hour in buildings equipped.