Fire Rated 2 Hour Shaft Wall Assembly

Mount a 1 1 2 inch fiberglass barrier inside the studs.

Fire rated 2 hour shaft wall assembly.

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. For testing requirements see section 715 4 3. Face layer 5 8 15 9 mm toughrock fireguard x products or 5 8 15 9 mm densarmor plus fireguard gypsum panels installed vertically to studs with 1 58 type s. Steel sustained air pressure load psf size spacing thickness allowable in.

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. These wall assembly files are used for planning and estimation purposes for many ul wall types such as fire rated wall assemblies. Sw 106 1 hour shaftwall with deflection track.

U498 2 hour stairwell construction 1 fire shield shaftliner j track 020 0329 3 leg 0329 only view a a i stud 020 0329 u499 1 hour shaftwall allowable wall heights for 1 hour fire rated i stud assemblies stud stud min. Deflection 5 7. These systems utilize either an i stud or a c t stud and j track to. The systems are designed to withstand the intermittent surges of air pressure caused by fast moving elevator cabs.

2 hour vertical shaftwall system proroc shaftwall systems provide one two or three hour fire resistance ratings in non load bearing configurations. Base layer of 5 8 15 9 mm toughrock fireguard x products or 2 8 15 9 mm densarmor plus fireguard gypsum panels installed horizontally or vertically with 1 type s screws 24 o c. Two hour three hour and four hour rated walls require additional protection of penetrations since they must resist higher temperatures than a one hour rated wall and for a longer time. Two doors each with a fire protection rating of 1 1 2 hours installed on opposite side of the same opening in a fire wall shall be deemed equivalent in fire protection rating to one 3 hour door.

Type of assembly required assembly rating hours minimum fire door fire assembly fire rating. Head of wall firestop system gypsum board fire trak shadowline. 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.