Elevator shaft wall construction

What is shaft wall construction?

OVERVIEW. USG Shaft Wall Systems are non-load-bearing gypsum wall partition assemblies constructed from outside the shaft at each floor. Shafts are enclosed early in construction , and the walls are finished later, along with interior partitions.

What are shaft walls?

Shaft wall is a product designed to provide a method of constructing mechanical, electrical or other types of shafts out of thick gypsum based panels and specially designed steel studs. In many renovations the use of shaft wall is preferred, due to the challenges of masonry construction.

Can shaft wall be used horizontally?

I-Stud Cavity Shaftwall Systems can be erected horizontally and used as economical fire resistive assemblies for corridor ceilings, stair soffits, and protection for mechanical ducts. This System provides fire protection for mechanical ducts and has been tested from both sides.

What makes a 1 hour fire rated wall?

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.

What is shaft wall liner?

Gypsum Shaftliner Panels create shaftwall systems that are easy to build and highly resistant to fire. Gypsum Shaftliner Panels are special performance panels manufactured with a thick, noncombustible Type X core wrapped in either heavy-duty paper facers or sturdy fiberglass mats.

How thick is a 2 hour fire rated wall?

3 1/5 inches

What is a 3 hour fire wall?

The 3 – hour Area Separation Wall System is a 3 – hour fire wall consisting of two layers of 1 in. The steel H-Studs are attached to adjacent framing on each side with heat-softenable, aluminum break-away clips (ASW clips) that allow for collapse of the fire -exposed unit without collapse of the Area Separation Wall .

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What is a two hour fire wall?

Gypsum Board: Two ( 2 ) hour rated walls have two ( 2 ) layers of 5/8″ Type ‘X’ gypsum wallboard panels on each side of the steel studs. The ” Fire Tape” product would be used as an alternative to conventional joint tape in specific systems when: 3.

What is a CH stud?

Steeler Shaftwall Studs (also known as C-H Studs) can be easily combined with J Track to craft economical yet tough shaftwall systems. With a fire rating of up to 2 hours, Steeler C-H Studs are UL certified for Fire Resistance Rating, meaning peace-of-mind for designers and elevated safety for occupants.

What is an e stud?

Description: The E Studs are extremely light in weight and are used for starter studs, intersections, door openings and end studs. A 25 mm gaps between the flange allows friction- fit contact for the 25 mm Gypsemna’s Core Board as shaft liner.

How do you fire a wall rate?

Double the number of Type X sheets on the wall for a simple system installed over fire -resistant fiberglass insulation; each sheet of 5/8-inch Type X drywall is rated to resist fire for one hour, so two layers will produce a two-hour firewall. Put two sheets together on one side or use one sheet on each side of a wall .

How do you Fireproof an interior wall?

To construct a fire wall , concrete cinderblock is the most common material to use. It can stop the spread of fire between the areas of a structure while at the same time adding structural support. Fire partitions are often made from successive layers of gypsum board or sheetrock.