Roof Enclosure For Shaft Wall

1 hour corridor ceiling assembly with single layer 5 8 gypsum panels.

Roof enclosure for shaft wall.

Head of wall firestop system elastomeric spray firestop. Sw 104 1 hour shaftwall to steel deck. 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.

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. Usg shaft wall systems installed horizontally provide economical construction for fire resistive duct enclosures corridors ceilings and stairway soffits. Installation detail for transition to rated vertical shaft xl009 23 installation detail for transition to rated horizontal shaft xl015 24 installation detail for grease hoods xl022 25 optimized grease duct enclosure system 26 installation pictures good installations and bad access door examples 27. Ul design u499 w419.

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. Below the roof the shaft enclosure has a 2 hour rating. 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. Stairwall systems are designed to enclose stairwalls this system is finished on both sides with a single layer of 1 2 fire code board.

Solid shafts horizontal stud shafts. 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. Shaft enclosures are specifically addressed in section 713 of the 2015 international building code ibc. Shaft enclosures are specifi cally addressed in ibc section 713.