The Fraunhofer Seal of Approval

Spray foam is known to provide a superlative seal for a wide range of projects, yet a recent study conducted by the Fraunhofer Institute suggests that spray foam’s success extends far beyond this fantastic feat. According to the study, this seal is so effective that in most cases, an additional vapour barrier is deemed unnecessary, unless local certification suggests otherwise. In fact, such is the level of permeability expressed by spray foam that it absorbs only negligible amounts of water, providing a refreshing contrast to traditional materials, as it allows walls to breathe, and dry bi-directionally as well.