There are many reasons why Closed Cell Spray Foam (ccSPF)makes particularly good sense in a coastal home:
• It has a high R-value of 6.5 to 7 per inch.
• It absorbs a negligible amount of water. It can even be used as an effective secondary rain barrier and is the only FEMA-approved insulation for flood-resistant construction.
• It does a good job of controlling diffusion.
• It has good air barrier qualities to reduce airflow into and out of wall cavities.
• It expands to fill voids in hard-to-
• It provides some structural integrity to the frame
JouleFool has friends and family that have been recently impacted by Hurricane Issac. Closed Cell Foam is a great candidate for those that have had to “Gut” their houses due to flooding. It is the ultimate air barrier and is FEMA approved in flood plains due to it being water resistant. Spray Foam also has space heritage as a special formulation was used on the Space Shuttle External Fuel Tank to keep the cryogenic fuel at temperatures cold as
-423F with only a couple inches!
To learn more, read this article of why spray foam goes above and beyond being an insulation: http://www.ecohomemagazine.com/insulation/insulation-that-works_1.aspx