25MM RIDGID FOIL INSULATION BOARD (PIR BOARD)
PIR insulation is a high performance, fibre free board, with a rigid thermoset insulation core and faced on both sides with a low emissivity composite foil facing.
The low emissivity foil facings increase the thermal resistance an unventilated cavity adjacent to the insulation, reducing the overall U-value of the wall.
The good dimensional tolerances of the PIR insulation board enable it to be tightly butted to form a continuous layer of insulation. Joints can then be easily taped with an aluminium foil tape to provide an effective vapour control layer.
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