Will Icynene absorb moisture?
No, Icynene is referred to as hydrophobic. It repels water rather than wicking water like a sponge. However, if Icynene is submerged in water for an extended period of time, water will force its way into the cell structure of the foam. The beauty of Icynene is that the water will continue to drain out. For example, if Icynene is applied on the inside of a roof and there is a leak, the water will eventually come directly through the Icynene by gravity. The source of the leak can be identified and repaired. Then, as long as the Icynene has an opportunity to dry out, there will be no loss of performance.