Midland Insulation, Laois. Insulation specialists - cavity wall insulation, attic insulation, internal / external / woodframe, soffit lining & soundproofing.

Rockwool Cavity Wall Insulation

Rockwall Cavity wall insulation by Midland Insulation, Laois, Tipperary, Offaly, Kilkenny, Kildare, Carlow, Westmeath and Dublin, Ireland also improves soundproofing and fireproofing

EnergySaver blown cavity wall insulation for existing and new constructions

Rockwool EnergySaver cavity wall insulation is an entirely dry system which uses granulated Rockwool blown into an external wall cavity to a predetermined density. No glues or catalysts are involved in the installation procedure. The system may be used to improve the thermal insulation of both new and existing masonry cavity walls as well as certain types of non-traditional structures. Rockwool EnergySaver blown cavity wool does not create a bridge or capillary path within the cavity that might allow rainwater to penetrate to the inner leaf

Advantages of EnergySaver Blown Cavity Wall Insulation

Standards and approvals

Building Regulations


Relying on entrapped air for its thermal properties, Rockwool insulation does not contain (and has never contained) gases that have Ozone Depleting Potential (ODP) or Global Warming Potential (GWP). Rockwool therefore complies with the relatively modest threshold of GWP<5 included in documents such as the Code for Sustainable Homes.

Rockwool Ltd is increasingly involved in recycling waste Rockwool material that may be generated during installation or at end of life disposal, and has a recycling scheme that is recognised by WRAP and the Environment Agency.
We are happy to discuss the individual requirements of contractors and users considering returning Rockwool materials to our factory for recycling.BRE A+ rating

Fire performance


Water resistance

EnergySaver repels water due to the presence of water repellent additives. Should water penetrate the outer leaf of the cavity wall, it will drain down between the wall surface and the injected filling. The Rockwool EnergySaver system is designed so that water will not cross the cavity by capillary action. In situations where Rockwool material is present both above and below the ground floor damp-proof course, it will not transmit ground water by capillary action.

Condensation control


EnergySaver will not react with wire, plastic or metal wall ties, brickwork or masonry, nor will it cause loss of plasticiser from PVC cables and pipes.

Contact Us for cavity wall insulation throughout Munster and Leinster, including counties: Laois, Tipperary, Offaly, Kilkenny, Kildare, Carlow, Westmeath and Dublin, Ireland.