The Federal Emergency Management Agency (FEMA), which responds to natural disasters, has classified SPF insulation as highly resistant to floodwater damage.
Spray Foam Roofs: Strong and Durable
Applying a spray polyurethane foam (SPF) roofing system can improve a buildings strength and an effective lifespan that can exceed up to 30 years.1
Because SPF conforms and adheres to the surface on which it is sprayed, a strong bond forms to protect the roof. The layer of spray foam is seamless and self-flashing, which can eliminate the ability of water to seep through weak spots, such as fasteners and seams.
SPF Insulation: Strength and Resilience
The Federal Emergency Management Agency (FEMA), which responds to natural disasters, has classified SPF insulation as highly resistant to floodwater damage, saying, “These materials can survive wetting and drying and may be successfully cleaned after a flood to render them free of most harmful pollutants.2
Applying closed-cell spray foam in the cavities of the walls increases durability of the wall system3 because of the foam’s ability to conform and adhere to the surface4 upon which it is sprayed. A wall with spray foam insulation has a higher racking strength, or ability to maintain its shape under duress, than a wall assembly without spray foam.5
- Mason Knowles, “Specifying SPF Roofing Systems” September 2005
- “Flood Damage-Resistant Materials Requirements” FEMA Technical Bulletin 2, August 2008. http://www.fema.gov/media-library/assets/documents/2655
Additional Spray Foam Resources
Guidance on Modeling Unvented Attics in CA
See how SPF can be useful for the California Energy Commission’s 2016 requirements for High Performance Attics.
Guidance on Removal & Disposal of High Pressure SPF
Learn more about the variety of factors to consider when removing high-pressure SPF insulation from buildings.