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Building Codes
Fire-Resistant Spray Foam Passes Test for Flammability For the Second Time
GacoFireStop open-cell foam passes AC 377 Appendix X in alternative configuration.

Seattle, WA – July 7 – Last week, Gaco Western’s GacoFireStop fire resistant spray foam once again passed the industry’s extensive fire testing and building code tests. GacoFireStop passed the AC 377 Appendix X test for flammability by exceeding the minimum time of 4 minutes, 18 seconds without a coating. The new test was passed without any major trimming, or with the “skin on”. GacoFireStop also showed no tendency to burn beyond the 4:18 time span. The first time GacoFireStop passed the industry’s testing in February, the foam had been shaved but this recent test showed that GacoFireStop can be used with or without trimming and without any additional coatings.

In most crawl space and attic applications, skilled foam insulation applicators fill a cavity to a specific thickness without trimming the foam. In passing the “skin on” test, GacoFireStop exhibits that the foam is safe and meets code, which builds on the previous Appendix X test results and gives confidence to contractors, code officials, homeowners and home builders to use the product freely.

“The results of the second test mean that customers have double the safety,” Peter Davis, president and CEO of Gaco Western said. “Now code officials and all of our customers – builders, contractors and homeowners – can be doubly certain that GacoFireStop meets and exceeds all relevant fire codes because we passed twice. This test puts GacoFireStop in a class all its own.”

Due to the results of last week’s test, Gaco Western plans to launch a campaign to educate fire and code officials about GacoFireStop and the characteristics that led to it passing the demanding tests.

“This truly groundbreaking technology definitely has the spray foam market buzzing,” said Tom Sojak, vice president of sales for the Gaco Western WallFoam division. “No one thought it would be possible for an open cell product to pass the rigorous challenge of the Appendix X test and now we have done it twice.”

In a new NFPA 286 test, also completed last week, contractors can now spray GacoFireStop up to 12 inches thick in walls, and up to 16 inches thick in ceilings and still meet the E84 fire test requirements.

About Gaco Western
Family owned and operated for more than 50 years, Gaco Western manufactures the most technologically advanced, proprietary elastomeric coatings and polyurethane spray foam for the construction and waterproofing industries. Dedicated to meeting the needs of its customers, the Gaco family of brands offers best-of-class solutions for a variety of commercial, industrial and residential applications including: specialty coatings for roof, pedestrian and traffic decking; and spray polyurethane insulation for commercial, industrial and residential applications. Core products include: GacoWallFoam insulation, GacoDeck, GacoShield and GacoRoof coatings for residential applications; Gaco RoofFoam, GacoFlex LM-60, GacoPedestrianDeck and GacoAutoDeck for commercial applications. Products are available nationwide. For more information: or 800.331.0196.

Waterproofing and insulating the world, from NASA to your neighborhood, Gaco Western has you covered with innovative solutions.

Gaco Western Directory Page

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