Instructions / Assembly

Shaftwall
28
The technical content of this literature is eective 5/31/12 and supersedes all previous information.Pub. No. CD-Full Line 5/12
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Tested, approved assemblies with unprecedented flexibility.
What makes the ClarkDietrich shaftwall construction
system unique is that it has been tested with almost every
gypsum board and shaftliner manufacturer in the country.
Other systems are only tested with one type of gypsum
board and shaftliner. Unlike competing systems, the
ClarkDietrich CT-stud and J-tabbed track system provide
maximum flexibility, allowing you to choose from a variety
of board manufacturers. This unprecedented flexibility
means quick availability of product at economical costs.
Shaftwall System consists of 1" shaftliner panels
supported by 2-1/2," 4" or 6" CT-studs and faced on one
side with varying layers of fire code board.
Stairwall Systems are designed to enclose stairwalls,
and are finished on both sides with varying layers of fire
code board.
LIFE SAFETY & FIRERESISTANT PROTECTION
Shaftwall systems are nonload-bearing, fire-rated wall
assemblies that provide critical, life safety, fire-resistant
protection for elevator shafts, stairwells, vertical chases
and mechanical enclosures. Shaftwalls in elevators and
stairwells provide the only means of evacuation from the
building in an emergency—making them one of the most
important wall assemblies in a building. Vertical chases
and mechanical enclosures keep vital communication,
power, water, fresh air and exhaust systems intact when a
fire occurs.
CONSTRUCTION METHODS
Cavity shaftwalls are constructed utilizing one of two
methods: masonry/CMU or light-gauge steel and gypsum.
Gypsum drywall shaftwall construction has become the
preferred and most widely used shaftwall assembly. These
shaftwalls are lightweight, install faster, and provide lower
in-place costs. They also significantly reduce structural
framing and foundation costs, and are easy, quick and
clean to install.
Masonry shaftwalls in high-rise buildings historically
weigh between 20 and 45 lbs. per square foot,
compared to gypsum assemblies that weigh between
10 and 13 lbs. per square foot. In addition to substantial
weight reduction, gypsum shaftwall assemblies can be
installed from the exterior of the shaft at each floor,
eliminating the need for scaolding.
Stairwall
Shaftwall
ClarkDietrich Shaftwall Systems