Dow Styrofoam Blue Board Equivalent XPS Foam Insulation Panel for Construction and Civil Engineering

XPS Foam Board is an extruded polystyrene insulation material known for its closed-cell structure, high compressive strength, and low thermal conductivity. It is used in wall insulation, roofing systems, underfloor heating, cold storage rooms, and various construction applications requiring moisture resistance and long-term thermal performance.

XPS Board is manufactured through an extrusion process, creating a uniform closed-cell structure that offers better moisture resistance, higher compressive strength, and a more stable R-value than EPS. EPS is molded and contains open cells, making it more permeable and less durable for high-load or wet environments.

Extruded Polystyrene Board provides excellent thermal insulation, dimensional stability, freeze-thaw resistance, and long-term durability. It is ideal for foundations, cavity walls, inverted roofs, and commercial buildings where consistent energy performance and moisture control are essential.

XPS Insulation Board provides high compressive strength and low thermal conductivity, ensuring efficient heat reflection upwards rather than downward heat loss. Its moisture-resistant closed-cell structure prevents degradation in humid environments, extending the lifespan of radiant heating pipes and energy efficiency.

Yes, XPS Panels are inherently waterproof due to their extruded closed-cell structure, which prevents water absorption and vapor penetration. This makes them ideal for basements, roofs, exterior walls, and any application requiring long-term moisture resistance.