2 Hour Fire Rated Wall Detail

Corridor walls permitted to have a 1 2hour fire resistance rating by table 1020 1 2.

2 hour fire rated wall detail.

19 1 mm air space between the h stud assembly and any adjacent framing members. Fire resistance ratings are expressed in the number of minutes or hours a structure can withstand a fire simulation test. Ss 504 1 hour partition corner detail. The ratings relate to fire tests designed to determine how quickly fire can raise the temperature to unacceptable levels.

When you cannot maintain a minimum 3 4 in. 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. 2 fire rated wood frame wall and floor ceiling assemblies. Head of wall firestop system proform quick set fs 90 compound 1 side ul design u411 v438.

Use special fiberglass rated for use in firewalls. Ss 503 control joints for fire rated systems. Mount a 1 1 2 inch fiberglass barrier inside the studs. Ss 211 2 hour partition to steel deck.

19 1 mm air space cover the h studs and c tracks by gypsum board battens. 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. A continuous basement to roof wall having adequate fire resistance rating expressed in hours with an adequate structural stability under fire.

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. Usg provides resources here for our ul wall assemblies for seamless integration into any construction project. 2x4 16 o c. Line or at the parapet and at the ends of walls.

3 mineral wool batts. 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. 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. 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.

For a 2 hour fire rated assembly without the need for battens maintain a minimum 3 4 in. Assemblies rated from both sides. Sheathing on both sides.