ROCKPRIME® Loft Insulation Create a warm, dry & energy efficient household Our unique ROCKPRIME® insulation system is made from stone wool and is one of the most sustainable insulation products available for homeowners.

Keep the warmth inside your home Do you know... 25% of the energy used to heat your living space is lost if your loft is not properly insulated.* ROCKPRIME® acts as a barrier, retaining heat and reducing energy costs the sustainable way. Installed by approved installers, our complete loft insulation system gives you total peace of mind. Fire resistance ROCKWOOL® products provide exceptional fire protection. All of our stone wool products are deemed non-conbustible. Acoustic comfort Keeps your house warm and reduces energy bills Ideal for new builds and existing lofts Quicker to install than insulation...