Open Cell Foam Application

As an less costly alternative to rigid closed cell foam, open cell foam is available. Open cell foam has an effective R-Value of 3.7 per inch. This product is more breathable to vapor diffusion, therefore will not entrap moisture. Open cell foam has superior air sealing properties over fiberglass and cellulose and costs less than closed cell foams. A vapor barrier may or may not be needed with the use of Half pound foam.

Half pound foam is sprayed in between the wall studs and expands to fill each cavity. After the cavity is full, the foam is cut flush with the studs, then it is ready for drywall or other finishings.