Demilec Sealection 500 Spray Foam Insulation Now Ignition Barrier-Free for Unvented Attics

Third-party tests conclude that builders and contractors can save time and money using Demilec’s Sealection 500 as high-performing barrier.

Arlington, Texas, June 14, 2016 – After rigorous third-party testing, Demilec’s Sealection 500 open-cell spray foam insulation has been approved for use in unvented attics without the need for an ignition barrier, which effectively eliminates the need to hire a contractor to add a secondary ignition barrier in these applications. A contractor need only follow the requirements of Intertek CCRR 1063 issued for Sealection 500 when installing spray foam insulation in an unvented attic.

Demilec now offers two options for spraying open-cell without the need for an ignition barrier: APX 1.2 for assemblies requiring a traditional ACC 377 Appendix X certification and Sealection 500 for unvented attics.

An innovative open-cell spray foam insulation formula, Sealection 500 expands 120 times its liquid volume to insulate and seal all joints, gaps, and cracks in one application at an R-value of 3.81 at 1 inch. The product is engineered to improve energy efficiency, cutting cooling and heating costs in half for many homeowners. This product also prevents ozone-depleting chemicals like asbestos, fibers, and gases from being released into the air, making it a sustainable choice for residents and occupants.

According to Douglas Brady, Vice President of Strategic Marketing at Demilec Inc., “We are committed to providing products that serve our customers’ needs, as well as to help them save time and money on the jobsite. Being able to spray Sealection 500 in an unvented attic without an ignition barrier is a key element in broadening an already strong open-cell product line for builders, contractors, and property owners.”

Visit Demilec’s website for further details on Sealection 500 and to view its application guide.

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About Demilec

For more than three decades, Demilec Inc., one of North America’s largest manufacturers of spray foam insulation and polyuria products, has focused on meeting market demands for more energy-efficient products for a variety of industries. An innovative and advanced industry leader, Demilec Inc. creates products for the oil & gas, energy, water, education, military and civil, residential, commercial, industrial, and agricultural industries. For further information and a look at the full range of products, please visit

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