Secondary Insulation Layer Wall Solution

With industry recognition of the issue of thermal bridging in walls, we have developed a cost-effective solution to significantly reduce heat loss while balancing cost. Our Interior Secondary Insulation Solution (ISIL) is installed to the interior of a 90mm frame between interior battens delivering around 20% more thermal performance as the same thickness of 140mm wall, while also being less expensive, and lighter and safer to transport and stand up on site.

The ISIL solution utilizes standard 90mm Pink® Batts® in frame and a purpose manufactured 530mm wide x 45mm thickness R1.3 secondary internal layer, to fit between 70mm wide interior battens at 600 centres, to reduce the thermal bridges from more than 25% down to only around 5%. Better still, testing by GIB® demonstrates that their bracing systems will still perform when installed over the interior battens provided the end studs of each bracing element are also battened vertically; contact us for more details.

Secondary Insulation Layer Wall Solution

Pink® Batts® Masonry Wall Insulation

It is a requirement that an absorbent building paper or a waterproof membrane is placed between the insulation and the concrete. This is not intended to replace the DPC which must still be fixed between the strapping and the masonry.

There is a high likelihood of interstitial condensation occurring where 90mm thickness (R2.2 and above) glasswool insulation is installed against a masonry or concrete wall. This is due to the lack of a ventilated external cavity to remove moisture. Therefore, in this situation, the recommended solution is Comfortech® Kooltherm Insulated Plasterboard; contact us for more details.

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