Rigid Insulation: What Is It and How to Use It?

Rigid insulation, a type of thermal insulation, is primarily designed to resist heat flow and provide a protective barrier between the external environment and a building’s interior. Comprised of panels made from various materials, such as expanded or extruded polystyrene, polyisocyanurate, and fiberglass, rigid insulation offers a high insulation value with relatively thin materials. Primary…

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