Loft Insulation

SuperFoil Multifoil

SuperFoil is a high-performance multifoil insulation system that uses multiple layers of reflective foil and wadding to deliver exceptional thermal performance in a fraction of the thickness of traditional insulation. At just 40mm thick, SuperFoil SF19 provides thermal performance comparable to much thicker conventional insulation, making it ideal for loft conversions where preserving headroom is critical. It also acts as a radiant barrier, vapour control layer, and breather membrane in one product.

Why Choose SuperFoil Multifoil?

  • Exceptional thermal performance at only 40mm thickness — preserves headroom
  • LABC Registered detail for use in loft conversions across England & Wales
  • Acts as insulation, vapour barrier, and breather membrane in one
  • BBA-certified with independently verified thermal performance
  • Reflects up to 95% of radiant heat — keeps lofts cool in summer too

Price Guide

£1,500–£3,500

Typical cost for a standard loft

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Frequently Asked Questions

Is SuperFoil as good as traditional insulation?

SuperFoil multifoil insulation achieves excellent thermal performance in a much thinner profile. The SF19 product is LABC Registered and BBA-certified for use in pitched roof applications. When installed correctly with appropriate air gaps, it meets or exceeds Building Regulations requirements while saving valuable headroom in loft conversions.

Can SuperFoil be used in a loft conversion?

Yes, SuperFoil is specifically designed for loft conversions where space is at a premium. Its thin profile (40mm vs 150mm+ for rigid board) means you retain maximum headroom. It is LABC Registered for use between and under rafters in pitched roof conversions.

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