Roof Enclosure For Shaft Wall

Solid shafts horizontal stud shafts.

Roof enclosure for shaft wall.

Below the roof the shaft enclosure has a 2 hour rating. These shafts are vital for vertical communication power water fresh air exhaust and a means of egress. Shaftwall system consists of 1 shaftliner panels supported by 2 1 2 4 or 6 c t studs and faced on one side with two layers of 1 2 fire code board. Head of wall firestop system elastomeric spray firestop.

Shaft enclosures are specifi cally addressed in ibc section 713. Above the roof the shaft enclosure is a penthouse with walls to about 30 inches above the roof and then 48 inch high louvers up to the roof of the shaft penthouse. Shaft enclosure for hvac ductwork and roof drain pipes extends from ground floor slab up through the roof of a 2 story building. However because shaft enclosure walls are to be constructed as fire barriers per section 713 2 many shaft wall requirements directly reference provisions on fire barriers found in section 707.

Shaft enclosures that are permitted to be penetrated by ducts and air transfer openings shall be protected with approved fire and smoke dampers installed in accordance with their listing. However because shaft enclosure walls are to be constructed as fi re barriers per section 713 2 many shaft wall require ments directly reference provisions of fi re barriers found in section 707. Solid shafts are normally used to construct mechanical or duct enclosures or in areas where a small section of shaft wall is needed for a single vertical pipe penetration. Fire dampers are not required at penetrations of shafts where.

Usg shaft wall systems installed horizontally provide economical construction for fire resistive duct enclosures corridors ceilings and stairway soffits. Sw 104 1 hour shaftwall to steel deck. Shaft enclosures are specifically addressed in section 713 of the 2015 international building code ibc. Ul design u499 w419.