Dow Styrofoam SM Type 4 R7.5

Dow Styrofoam SM 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 1/2 inches thick, providing an insulation value of R7.5.

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 R7.5 insulation value means that Dow Styrofoam SM can provide significant thermal resistance, helping to reduce heat loss or gain through walls, roofs, or floors.

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.

Dow Styrofoam SM is often used in high-performance building projects to help meet energy codes and achieve green building certifications. It provides a durable, long-lasting insulation solution that can help improve energy efficiency, reduce heating and cooling costs, and enhance occupant comfort.