Each slab is named after the thermal conductivity provided for example, Cavity wall slab 34 provides a thermal conductivity of 0.034W/mK.

Cavity wall slab 34 is easy to cut if necessary and can be cut using a sharp knife. A mat or protective layer should be applied to the floor before cutting so the floor is not damaged. A ruler or plank can be used as a tool to hold the insulation slabs in place and provide a guide whilst cutting.

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