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SuperFOIL  |  SKU: SFUF-32

SuperFOIL 6mm SFUF Floor Insulation Roll - 1.5m x 10m - 32 Pack (480m²)

£3,269.15 Ex VAT
£3,922.98 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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For large projects, our SuperFOIL SFUF is available in a pallet of 32 rolls - perfect for extensions or renovations. Originally designed for - but not limited to - flooring applications, The SuperFOIL SFUF Is made of heavy duty polythene, thermo foam, and aluminium coated PET layers sandwiched between two layers of heavy duty laminated foil, to create an insulating layer ideal for use with underfloor heating, over and under suspended concrete or timber floors or even to insulate underfloor radiant heating pipes.

 A 3-in-1 design, the SFUF Multifoil floor insulation functions as foil insulation, a vapour control layer and a radiant barrier. SuperFOIL SFUF is a lightweight material that’s easy to handle and very DIY friendly.

  • Achieves an R Value of 0.8 in Roofs, Walls and Floors
  • Ideal for New Builds, Extensions and retrofits
  • Simple installation with basic tools and supplies
  • Space-saving size with effective insulating properties

What is Multi foil insulation?

Multi-foil insulation is a type of thermal insulation material composed of several layers of reflective foil, often with additional materials such as foam or bubble wrap sandwiched in between. The reflective foil layers work by reflecting radiant heat, preventing it from entering or escaping a building, thus helping to maintain desired temperatures and improve energy efficiency. This type of insulation is popular for its lightweight and flexible nature, making it easy to install in various construction applications, such as roofs, walls, and floors. Multi-foil insulation is known for its high thermal performance and is often chosen for its effectiveness in reducing heat loss or gain in buildings.

What is a Vapour Control Layer (VCL)? 

A vapour control layer (VCL), also known as a vapour barrier, is a material used in building construction to prevent the passage of water vapour through walls, ceilings, floors, or roofs. It is typically installed on the “warm” side of the insulation (typically the interior side) where it helps to control moisture levels within the building envelope. By blocking the movement of water vapour, a VCL helps to prevent condensation from occurring within the building structure, which can lead to issues such as mould growth, rot, and reduced insulation effectiveness.

What is a Radiant Barrier?

A radiant barrier is a type of material designed to reduce radiant heat transfer. Radiant barriers work by reflecting radiant heat away from the surface they cover, which helps to keep spaces cooler in the summer and warmer in the winter. They are often installed in attics, under roofs, or in walls where they can block the transfer of radiant heat from the sun or from indoor heating systems. By minimising radiant heat transfer, radiant barriers can help improve energy efficiency and increase comfort levels within buildings.

How to install SuperFOIL SFUF?

There are many different types of floors that SFUF can be used with, so it is best to investigate the specific use case before installing, but generally the insulation is laid below the flooring, with joints butted to prevent excessive overlap, and sealed with insulation tape. The SFUF may need to be stapled to joists or otherwise secured depending on the use case.

Data Sheets & Guides:

SuperFoil Under Rafter Installation Guide

SuperFoil Over Rafter Installation Guide

Super Foil External Wall Installation Guide

SuperFoil SFUF Data Sheet

Large Order or Specific Requirement?

CALL OUR TEAM

0115 6976 800

  • Size
    1500mm x 10m
  • Coverage (m²)
    480
  • Thickness
    6mm
  • Length
    10m
  • Width
    1.5m
  • Material
    Thermal Foam & Foil
  • Estimated Lifespan
    50+ Years
  • Thermal Resistance
    Core R Value: 0.8
  • Water Resistance
    1200MNs/g

Frequently Asked Questions

What are Vapour Control Layers?

Vapour Control layered are used in modern building construction to prevent water vapour from the surrounding environment from passing through the layer. They are typically made from a polyethylene sheet and are often reinforced or combined with a reflective layer to improve their durability or insulation efficacy. They are designed to be used on the “warm side” of a wall or roof structure, in combination with a breather membrane, which is applied to the “cold side”. 

Types of Vapour Control Layers

We stock a wide range of Vapour Control Barriers with different levels of durability and efficacy to suit whatever the needs of your project. However, our range of Vapour Control layers can be divided into a few distinct groups:

Standard Grade Polythene VCL

Choose from our wide range of standard Polythene Vapour Control Layers. These are a standard polythene roll which is designed for affordable and simple installation.

Reinforced Polythene VCL

For a more durable finish, select a reinforced polythene VCL which is often suitable for flooring as welll as floors and roofs, and has greeted resistance to tears when installing. 

Gas Barrier and VCL

Used mostly in flooring, these are used to control the flow of harmful gases such as Radon and Methane into the structure from below. It is imperative that these are fitted with the correct airtight seal to achieve full efficacy. 

Reflective VCL and Radiant Barrier

Many of our SuperFOIL products function as both a VCL and Radiant barrier. Their reflective surface reflects heat - directing it back into the structure and directing external heat out - ideal for keeping buildings cool in summer as well as warm in winter. They are applied in the same way as a standard VCL, meaning they will increase thermal efficiency of a structure and work as a VCL, as long as an airtight seal is achieved.

How Vapour Control Layers Work

The primary function of a vapour control barrier is to limit the movement of water vapour through building materials. Water vapour naturally moves from areas of high concentration (warm, moist air) to areas of low concentration (cold, dry air). In a building, this often means moisture from indoor air trying to escape into the colder exterior during winter months or outdoor humidity penetrating the interior during summer. Typically, vapour barriers are installed on the warm side of the insulation (the interior side in cold climates) to prevent indoor moisture from reaching the insulation and exterior walls

Vapour barriers are typically made from materials with low permeability, such as polyethylene plastic. These materials create a solid barrier that prevents water vapour from passing through walls, floors, and ceilings. By blocking this moisture movement, the vapour control barrier helps maintain a dry and stable environment within the building. They must be properly sealed with jointing/lap tape to ensure a comprehensive airtight seal to ensure they are and stay airtight.