Partially filled cavity wall insulation

cavity wall drawingPolyurethane (PUR) and Polyisocyanurate (PIR) insulation products, when used in a partial fill masonry cavity wall construction, offer one of the thinnest solutions available as a result of their superior thermal performance.

Man-made-mineral-fibre (MMMF) is susceptible to water penetration and this can have a severe effect on its thermal performance. PIR/PUR insulation products are resistant to moisture penetration as a result of their closed cell structure. Consequently the thermal performance of PIR/PUR insulation products should remain at its designed level for the lifetime of the building.

Air movement over un-faced mineral fibre within a cavity wall can lead to a significant amount of heat loss. PIR/PUR insulation products are unaffected by air movement.

Benefits of PIR/PUR insulation products for cavity walls (partial fill)