If PIR insulation becomes wet, it’s important to assess and address the situation promptly. PIR insulation is generally known for its low moisture absorption rate, which means it doesn’t easily soak up water, however, prolonged exposure to moisture can potentially affect its thermal performance and structural integrity.

If your PIR insulation does get wet, the first step is to allow it to dry out thoroughly. This may involve removing any covering materials to expose the insulation to air. In most cases, once fully dried, PIR insulation can retain its original properties and continue to function effectively, however, it’s crucial to identify and fix the source of the moisture to prevent future issues.