How does Closed Cell compare with Open Cell formulas?
Closed cell foam has significant advantages. Closed cell spray foam has approximately double the R-value in 1 inch of open celled foams. Closed Cell resists water and seals out air in just 1 inch. Just sealing out air leaks alone can lead to a dramatic savings in energy costs according to the U.S. Department of Energy. Open cell foams hold water which can quickly lead to mold problems.
