EWS577 Boulder Developments Superfoil SF19+
This is an assessment of Superfoil SF19+, a multifoil type insulation product with a reflective vapour control layer for use in roofs and walls.
It can be used as an insulation layer in timber framed and masonry walls and as an underlayer in pitched roofs and flat roofs. In both cases battens are incorporated to maintain an unventilated air gap on both sides of the product. Supplementary insulation layers are usually incorporated to meet U Value targets in the building regulations.
Valid until 27th August 2022
Please Note: Every care was taken to ensure the information was correct at the time of publication. Any written guidance provided does not replace the user’s professional judgement. It is the responsibility of the dutyholder or person carrying out the work to ensure compliance with relevant Building Regulations or applicable technical standards.
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