Dow Styrofoam Cladmate CM20 Type 3 (R2.5)

Dow Styrofoam Cladmate CM20 is a type of rigid insulation board that is commonly used in building construction to improve energy efficiency and thermal performance. The board measures 2 feet by 8 feet and is 1/2 inch thick, providing an insulation value of R2.5.

The R-value is a measure of thermal resistance, indicating how well a material resists heat transfer. The higher the R-value, the better the insulation performance. An R2.5 insulation value means that Dow Styrofoam Cladmate CM20 can provide some thermal resistance, helping to reduce heat loss or gain through walls, roofs, or floors, although it is not as effective as higher R-value insulation materials.

The board is made of a rigid polystyrene foam material that is designed to be lightweight, durable, and moisture-resistant. It is suitable for use in a variety of building applications, including exterior sheathing, interior walls, and roofs.