2 Hour Fire Rated Wall Detail

3 mineral wool batts.

2 hour fire rated wall detail.

The american society for testing and materials and underwriters laboratory both have specifications for. Ss 503 control joints for fire rated systems. 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. Assemblies rated from both sides.

Head of wall firestop system proform quick set fs 90 compound 1 side ul design u411 v438. 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. 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. For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in.

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. Corridor walls permitted to have a 1 2hour fire resistance rating by table 1020 1 2. 19 1 mm air space cover the h studs and c tracks by gypsum board battens. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project.

These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. When you cannot maintain a minimum 3 4 in. Sheathing on both sides. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

Use special fiberglass rated for use in firewalls. 2 fire rated wood frame wall and floor ceiling assemblies. Table 1 one hour fire rated loadbearing wood frame wall assemblies. 19 1 mm air space between the h stud assembly and any adjacent framing members.

A continuous basement to roof wall having adequate fire resistance rating expressed in hours with an adequate structural stability under fire. 5 8 type x gypsum wallboard h 2 6 type s drywall screws 12 o c. Ss 504 1 hour partition corner detail. Line or at the parapet and at the ends of walls.

2x4 16 o c. 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. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test.