Did You Know: The Difference Between Open and Closed-Cell Foam?
Foams are created by taking a solid polymer and expanding it with a blowing agent. A blowing agent creates a collection of microscopic cells within a polymer matrix. Foams can be classified as either closed-cell or open-cell.
Open-cell and closed-cell the foam materials behave differently because of the difference in cell structure (shown above). A closed-cell foam resists water and airflow, while an open-cell foam allows water and air into and through the foam.
At Atlas, we only manufacture closed-cell expanded polystyrene foam.
Insulation plays a crucial role in a building’s envelope and significantly impacts its energy efficiency. ThermalStar's diverse range of products provides high-performance continuous rigid insulation tailored to meet all your roof, wall and below grade requirements. In addition, Atlas Molded Products offers Geofoam Lightweight Fill. Click to learn more about our variety of insulation products.
Please see our Technical Data for more information.