Corrugated Stainless Steel Tubing (CSST) is thin-walled metallic tubing that can be used as alternative gas piping material to steel pipe. CSST may have been used in your structure if it was built after 1990 or its gas piping system has been replaced or modified since then. CSST may have a yellow or black plastic exterior coating and would typically be present inside walls and through and along floor and ceiling joists. It is not the same as the flexible appliance connectors that connect to gas appliances.
Protect Against Lightning
To help protect structures from potential lightning strikes, the installer of CSST and/or the owner/operator of the structure where the CSST is used should consider installing an appropriate lightning protection system pursuant to NFPA 780 or other recognized standards.
Class Action Lawsuit involving CSST
In 2002, four manufacturers of CSST settled a class action lawsuit in which it was alleged by plaintiffs, but denied by defendants, that CSST posed an unreasonable risk of gas leaks and fire due to lightning strikes. For more information on the CSST Settlement, visit their website* or call the toll-free Settlement Information Line at 1-800-420-2916.
CSST Installation Inspections
We do not provide inspection services for CSST installations. If you are unsure whether CSST was installed in your structure, please contact your builder, contractor or a licensed professional for an evaluation or more information.