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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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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

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  • 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

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0115 6976 800

Frequently Asked Questions

What is Floor Insulation?

Floor insulation involves installing materials beneath the flooring of a building to reduce heat loss and improve energy efficiency. This insulation typically consists of materials such as EPS (Expanded Polystyrene) Insulation Board, PIR Insulation Boards such as Celotex, Mineral wool batts, or multifoil rolls like Superfoil insulation - which are placed between the floor joists or beneath the floorboards. Floor insulation helps to create a thermal barrier, preventing heat from escaping through the floor and keeping the interior of the building warmer in colder months. It also contributes to soundproofing and can help to reduce energy bills by decreasing the need for heating.

What is PIR Insulation Board?

Polyisocyanurate (PIR) insulation board is a type of rigid foam insulation board backed with a foil layer, that is renowned for its exceptional thermal performance. It is a strong and light type of foam that keeps structures warm by trapping air inside, and is usually known by brand names such as Celotex or Recticel. PIR insulation is lightweight, durable, and offers excellent fire resistance and thermal insulating properties, making it a super DIY-friendly solution that can easily be cut to size and is suitable for a variety of projects. In flooring, Celotex insulation board can be used in both concrete floor insulation and suspended timber floor insulation projects.

What is Jablite Floor Insulation?

Jablite is a manufacturer of EPS (Expanded Polystyrene) insulation board, which is a lightweight, rigid board insulation material made from expanded polystyrene beads that can be easily cut to size and installed in various building applications, including walls, roofs, and floors - with Jabfloor being purpose made for flooring insulation. EPS insulation is manufactured by expanding polystyrene beads with steam and then moulding them into insulation boards. These boards help to reduce heat transfer and maintain consistent indoor temperatures. It is also moisture-resistant, durable, and resistant to mould and mildew growth, making it a popular choice for both residential and commercial insulation projects. In flooring, EPS insulation board is most commonly used in concrete flooring, placed on top of the initial concrete slab layer, below the final concrete screed.

What is Multi Foil Insulation?

Multi-foil insulation such as Superfoil 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 multifoil insulation is popular for its lightweight and flexible nature, making it easy to install in various construction applications, such as roofs, walls, and floors. In flooring, it is typically applied as flooring insulation below floorboards by rolling across and over the flooring joists, with any joins sealed with butyl tape.