The fire performance varies by product formulation and facing. Standard PU foam is combustible, but fire-retardant additives can achieve Euroclass B or C ratings. When installed according to code requirements (typically behind non-combustible barriers like gypsum board), it meets most building regulations. Special facings like glass fiber mats can improve fire resistance. It’s crucial to check specific product certifications for your region, as formulations differ significantly between manufacturers and applications.

