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A polyurethane (PUR) or polyisocyanurate (PIR) insulation product will enhance the energy efficiency of cavity walls. The enhancement will be to the highest level, adopting a fully filled cavity approach.

Since up to 35% of a building’s heat loss is through its walls, buildings with a cavity wall construction insulated with PUR or PIR insulation products will save a substantial amount of energy and have much lower heating bills.

The PUR or PIR foam system is injected into the cavity via holes in the outer leaf producing insulation with excellent adhesive and structural properties. The PUR/PIR insulation product bonds the inner and outer leaves together and insulates the cavity to the highest level, providing a unique insulation/building stabilisation combination.

Benefits of insulation for cavity walls (fully filled):

• Provides the best thermal performance of all practical full cavity insulants;
• Resistant to all climate exposure conditions;
• Ensures continuity of insulation and does not settle or leave part of the cavity uninsulated;
• Gives a useful life in excess of 50 years with a constant thermal performance;
• Eliminates the risk of water penetration;
• Is recommended by the Environment Agency as a measure to reduce flood damage to walls;
• Is resistant to moisture ingress;
• Provides wall stabilisation, especially useful where wall ties are failing;
• Have a British Standard specification and code of practice for their installation (BS 7456 and BS 7457);
• Are installed with no disruption to the occupants or other ongoing activities;
• Are BBA approved for use anywhere in the country (unlike other types of insulant whose use is geographically restricted);
• &Are non-fibrous and does not emit harmful emissions;
• Does not support the growth of fungi.

For further information please contact: Isothane Limited