ROCKWOOL ENERGYSAVER® ROCKWOOL ENERGYSAVER® Cavity Wall Insulation Create an energy efficient home that everyone will enjoy The ROCKWOOL ENERGYSAVER® cavity wall insulation system is made from stone wool and is one of the most energy efficient insulation products available for homeowners.

ROCKWOOL ENERGYSAVER® A warmer, more sustainable home Do you know... Up to 33% of heat loss from your home can occur through uninsulated cavity walls.* ROCKWOOL ENERGYSAVER® acts as a barrier, retaining warmth and reducing energy costs the sustainable way. Installed by approved installers, our complete blown cavity wall insulation system gives you total peace of mind. Benefits for Homeowners Keeps your house warm and reduces energy bills Ideal for masonry cavity walls Breatheable insulation reduces the risk of condensation in your home Does not rot or decay Installed by trained and qualified...