Brochure

Gastite Division, Titeflex Corporation
1116 Vaughn Parkway / Portland, TN 37148
800.662.0208 / www.gastite.com / [e-mail]
53
April 2015
Section 4: Installation Practices
4.3.6 Outdoor
FlashShield™ Flexible Gas Tubing has passed all requirements of ANSI LC1, which include testing for suitability for exposure
of CSST piping systems to outdoor environments.
a) Outdoors – When installed outdoors, the external jacketing shall remain intact as much as practical for the given installation.
b) Along side a structure – When installed along the outside of a structure (between the ground and a height of 6 ft) in
an exposed condition, the FlashShield™ CSST shall be protected from mechanical damage inside a conduit or chase. A
conduit or chase is not required if the tubing is installed in a location that will not subject the FlashShield™ CSST to
mechanical damage.
4.3.7 Fire Rated Construction
e FlashShield jacket is ASTM E84 25/50 compliant for the flame smoke spread and density index. ese values meet
most typical requirements for building construction. erefore, the jacket should remain intact when passing though typical
building construction such as plenums, floor and ceiling joists, rim joists, walls, and other fire rated resistance construction
limited to materials of ASTM E84 ratings of 25 flame and 50 smoke or lower.
A plenum is defined as an enclosed portion of the building structure that is designed to allow air movement, and thereby serve
as part of an air distribution system. (See definition of Plenum, Section 8.0.) No gas tubing may be run within ductwork.
For tubing passing through a UL classified fire rated construction, UL Classified Systems for “rough-Penetration
Firestop Systems (XHEZ)” may be found in UL Fire Resistance Volume 2. In instances that UL specifications for fire rated
construction conflict with the current Gastite Design and Installation Guide, UL takes precedence.
4.3.8 Routing rough Masonry Material
“Masonry material” includes but is not limited to brick, concrete, mortar, and stucco. e term “through masonry
construction” refers to any enclosed/concealed construction spaces where CSST is routed in close proximity to masonry but
does not apply to exposed CSST mounted to a set masonry surface.
When it is necessary to install FlashShield™ through masonry materials the tubing shall be routed through a conduit that is
1/2" larger in diameter (to ease routing) than the OD of the CSST and appropriate for the application. e sleeve
must maintain a continuous watertight barrier between the masonry material and the CSST, up to or past the edge of the
masonry hole.
Masonry encasement refers to any enclosed/concealed construction within “masonry material” that produces distributed
loads. For masonry encasement see Underground Installations (Section 4.9).