Protect TF InterFoil


Protect TF InterFoil is an innovative, highly reflective insulating breather construction membrane, designed specifically for use within a timber frame wall panel to enhance its thermal efficiency. When installed facing into an unventilated airspace, Protect TF InterFoil effectively blocks infra-red radiation and increases the thermal performance of the airspace, hence improving the overall U-value of the wall construction.

  • Key part of unique membrane solution with TF200 Thermo & VC Foil Ultra, delivering thermal efficiency and potential insulation cost savings.

  • Low emissivity reflective surface enhances the wall’s thermal performance and is corrosion and damage resistant.

  • Thermal Resistance R-value 0.77m2K/W.
  • Allows use of 0.032/0.035 lambda fibrous insulation, improving the wall’s acoustic performance.

  • Enables 0.03/0.032 lambda EPS insulation alternatives to be used.

  • Good vapour permeability meeting TRADA and NHBC requirements to prevent interstitial condensation.

  • Helps meet Building Regulations Part L1A requirements and Notional Dwelling Specification for walls.

  • UV and heat stabilised for long term durability.