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1 6
SuperFOIL  |  SKU: SFTVL11220

SuperFOIL SFTV 1L High Tech Foil Insulation Roll - 1.2m x 20m - 24m²

£42.12 Ex VAT
£50.54 Inc VAT
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Nationwide Delivery in 3-5 WORKING DAYS

Delivery: £50 ex VAT
FREE DELIVERY OVER £500

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A 2-in-1 Vapour Control Layer (VCL) and Radiant Barrier, the SuperFOIL SFTV 1L  is a Vapour Control Layer with a reflective finish one one side, that is designed to insulate heat from inside your property, as well as providing a barrier that reduces the transfer of moisture within the wall structure. 

Typically used on the “warm” (interior) side in wall structures, roofs and flooring, it has one reflective side and one “dull” side, with the reflective face generally facing outwards.

  • Achieves an R Value of 0.95 in Roofs, 1.42 in Walls and 2.80 in Floors
  • Ideal for New Builds, Extensions and retrofits
  • Simple installation with basic tools and supplies
  • Functions as both a VCL and Radiant Barrier

Data Sheets & Guides:

SuperFoil Under Rafter Installation Guide

SuperFoil Over Rafter Installation Guide

Super Foil External Wall Installation Guide

SuperFoil SFTV Data Sheet

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  • Size
    1200 mm x 20m
  • Coverage (m²)
    24
  • Thickness
    <1mm
  • Length
    20m
  • Width
    1200mm
  • Material
    Metallised Heavy Duty Polypropylene
  • Finish
    Metallised Polyester
  • Estimated Lifespan
    50+ Years
  • Thermal Resistance
    R Value: 0.47 - 1.40
  • Water Resistance
    1200MNs/g
  • Reaction to Fire
    Euroclass E

Large Order or Specific Requirement?

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0115 6976 800

Frequently Asked Questions

What is a Damp Proof Membrane?

Damp Proof Membranes (DPMs) are barriers often used in construction to prevent moisture from penetrating floors and walls. Made typically from a thick polyethylene sheeting, DPMs are often laid under concrete floors and walls to block moisture rising from the ground, thereby protecting interior spaces from dampness and mould.

What is a Breather Membrane?

A Breather Membrane is a semi-permeable layer that is designed to allow water vapour to escape from within a building while preventing liquid water from entering. They are installed on the “cold” side of a wall or roof structure (the “outward face” to ensure that the structure remains dry and free from condensation, which can lead to structural damage and poor insulation performance.

What is a Vapour Control Layer?

Vapour Control Layers (VCLs) are installed on the “warm” side of a wall or roof structure to limit the amount of water vapour that can pass through the structure. Unlike breather membranes, VCLs are designed to block vapour rather than allow it to pass, which helps prevent condensation within walls and roofs that leads to insulation degradation and structural damage. 

What is a Gas Barrier?

A Gas Barrier is a membrane used to prevent hazardous gases, such as radon, methane, and carbon dioxide, from entering a building. These barriers are especially important in areas with contaminated ground or high levels of natural gas emissions. Made from robust, impermeable materials, gas barriers are installed beneath the foundation to provide a protective seal, requiring an airtight seal with appropriate overlap tape.

What is a Radiant Barrier?

Many of our multifoil insulation products function as an insulation, a Vapour Control / Breather Membrane, and a Radiant Barrier. Radiant Barriers are designed to reflect radiant heat rather than absorb it. These barriers are typically installed in the attic or roof space to reduce heat transfer, keeping buildings cooler in summer and warmer in winter. By reflecting heat away, radiant barriers improve the energy efficiency of a building.

Our Popular Brands of VCLs, Breather Membranes and Damp Proofing