What Is Closed Cell Foam - It also will perform better below or above grade. Web closed cell foam is made up of cells that are, as the name suggests, completely closed. Because of this, closed cell foam is much. The cells are pressed together, so air and mositure are unable to get inside the foam. Closed cell foam is defined as a tightly knitted foam, totally enclosed by its walls.
Web closed cell foam is made up of cells that are, as the name suggests, completely closed. It also will perform better below or above grade. Because of this, closed cell foam is much. The cells are pressed together, so air and mositure are unable to get inside the foam. Closed cell foam is defined as a tightly knitted foam, totally enclosed by its walls.