Consider these benefits:
Moisture resistance: Versus open-cell PU foam, XPS’s closed-cell structure makes it more resistant to moisture absorption, thus maintaining its insulating effectiveness.
R-value retention: while PU foam may lose its thermal resistance (R-value) due to aging and moisture absorption, XPS maintains R-value and insulating performance over its lifespan.
Strength and durability: XPS’s high compressive strength and deformation resistance make it superior for applications subject to mechanical loads or pressure.
Fire resistance: With XPS’s higher fire resistance, it can meet even strict fire safety regulations.
Lower environmental impact: XPS can be manufactured with a lower environmental impact especially if recycled content or eco-friendly production methods are used as in green construction practices and certifications.