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Isover Cavity Wall Insulation | 85mm


Availability: Out of stock SKU: ISOCWI85MM

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Isover roll 2

Isover Cavity Wall Insulation | 85mm


Out of stock


Isover Cavity Wall Insulation | 85mm


Isover Cavity Wall Insulation is slabs of silicone impregnated glass mineral wool that provide thermal insulation in masonry cavity walls in full-fill applications. This product is suitable for a number of domestic and commercial applications, including multi-storey projects.

The insulation covers all durability concerns, including being non-combustible, resistant to weather in all exposure zones and the product does not age. As well as this, it is extremely lightweight, along with being easy to cut and install, making this one time job a much more efficient one.

This particular insulation is not only extremely durable, but is manufactured in such a way to provide a much more energy efficient and eco-friendly construction. If this insulation is applied to the home, it is possible to save up to £150 a year on energy costs, even if exterior cavity walls are insulated, as it stops heat escaping from the interior to the exterior walls. As well as trapping heat inside, the insulation also maintains temperature much better than standard insulation. As for environmental efficiency, the slabs themselves are made from 86% recycled glass, this makes them credited with having zero Ozone Depletion Potential and zero Global Warming Potential.

The Isover Cavity Wall Insulation is available in a variety of thicknesses:


Thicknesses available:

50mm 10.92m2 per pack
75mm 8.74m2 per pack
85mm 6.55m2 per pack
100mm 6.55m2 per pack

Additional information

Weight 15000 g


Yes, in some cases it may be possible to top up the cavity wall insulation because it can shrink over time and may become less effective.

It works by filling the gap in-between the outer wall and the inner wall. It stops heat loss in your home by keeping air trapped within the cavity.

If moisture gets into the insulation its ability to keep the house insulated and warm is diminished.

Yes, you can but it will be a lot of work and planning. It is recommended to get an expert to do it because mistakes can cost a lot of money to rectify.

Cavity wall insulation is installed by drilling holes into the side of a building. The insulation is then injected into the wall.

Cavity wall insulation is made of mineral wool.

No, it is classed as an irritant because it can irritate your eyes and skin, making them very itchy.

Cavity wall insulation can be highly flammable, but because of advances in the production of insulation, it’s fire retardant with a melting point of 1093 degrees C.

Cavity wall insulation can cause dampness if installed incorrectly.

Yes, it is definitely worth it. After it has been installed you will save energy and cut the cost of your heating bill.