Spray Foam Attic Ignition Barrier

According to a guide for spray foam installers thermal barriers and ignition barriers for the spray polyurethane foam industry when exposed to fire sources such as trash fires welding arcs cutting torches or red hot metal unprotected spf spray polyurethane foam can ignite and may result in a flash fire.

Spray foam attic ignition barrier.

According to the irc and ibc an attic or crawl space needs an ignition barrier over the spray foam if the space can be accessed but will not be used for storage or auxiliary living space. Spray polyurethane foam spf plastic insulation when installed in residential attic applications to ensure adequate performance of foam in a fire. When spray foam is installed in an attic or crawl space where there is an opening which would permit a person to climb into the space limited access the building code requires the installation of an ignition barrier over the exposed surface of the spray foam. And one part of this document appendix x describes an alternate test assembly that allows a spray foam product to be installed in an attic or crawl space that is limited to the service of utilities without a code prescribed ignition barrier.

Ignition barriers are only used in attics and crawl spaces. The first way is the prescriptive requirements listed in the irc and presented below. According to the irc and ibc an attic or crawl space needs an ignition barrier over the spray foam if the space can be accessed but will not be used for storage or auxiliary living space. Every sealtite pro formula is thoroughly tested for consistent performance and backed by the most accurate technical data available.

So now you may be wondering what does thermal or. What is an ignition barrier. You don t need an ignition barrier if the space cannot be accessed without cutting into it if it is not connected to other spaces and if it does not communicate with other spaces. There are two ways to meet the requirements for an ignition barrier or thermal barriers.

You don t need an ignition barrier if the space cannot be accessed without cutting into it if it is not connected to other spaces and if it does not communicate with other spaces. Ignition barriers may not be required in your area but it is always recommended as it is another area and layer of protection for the building. Ignition barrier ibc 2603 4 1 6 irc r316 5 3 fire protection requirements can be reduced from 15 minute thermal barrier to ignition barrier in limited access spaces certain attics and crawlspaces six prescriptive ignition barriers include. Carlisle spray foam insulation is committed to creating the highest quality spray polyurethane products for the spray foam professional.