Basket

Calculate Shipping
SuperFOIL  |  SKU: SFUF-16

SuperFOIL 6mm SFUF Floor Insulation Roll - 1.5m x 10m - 16 Pack (240m²)


£1,700.13 Ex VAT
£2,040.16 Inc VAT
Pay securely with Visa Maestro Mastercard Amex Klarna Paypal

Nationwide Delivery in 3-5 WORKING DAYS

Delivery: £50 ex VAT
FREE DELIVERY OVER £500

Need a next-day or named day delivery? Call Us.

For large projects, our SuperFOIL SFUF is available in a pallet of 16 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

Build Rewards with Every Purchase!

Earn Points, Redeem Vouchers

Sign Up Now for 150 Free Points
  • Size
    1500mm x 10m
  • Coverage (m²)
    240
  • 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

Large Order or Specific Requirement?

CALL OUR TEAM

0115 6976 800

What is Multifoil Insulation?

Multifoil insulation is a high-performance, multi-layered material designed to provide exceptional thermal efficiency by reflecting radiant heat. It combines several layers of reflective foil, foam, and wadding to create a lightweight and versatile insulation solution. At DIY Building Supplies, our multifoil insulation products offer a cost-effective and space-saving way to enhance energy efficiency in your home or commercial property.

Why Choose Multifoil Insulation?

Multifoil insulation delivers numerous advantages, making it a popular choice for a variety of projects:

  1. Exceptional Thermal Performance: Reflects radiant heat to maintain comfortable indoor temperatures year-round, reducing energy consumption.
  2. Space-Saving Design: Its thin, multi-layer construction makes it ideal for areas where traditional bulky insulation might not be suitable.
  3. Lightweight and Flexible: Easy to handle, cut, and install, multifoil insulation is perfect for DIY enthusiasts and professionals alike.
  4. Moisture and Vapour Resistance: Acts as a barrier to moisture and vapour, helping to prevent condensation and improve the durability of your building.
  5. Versatility: Suitable for walls, roofs, floors, and even irregularly shaped spaces, providing a comprehensive insulation solution.
Applications of Multifoil Insulation

Multifoil insulation is incredibly versatile and can be used in various settings, including:

  • Roof Insulation: Ideal for both pitched and flat roofs, enhancing thermal efficiency while saving space.
  • Wall Insulation: Suitable for timber frame, solid, and cavity walls to improve energy performance.
  • Floor Insulation: Provides effective underfloor insulation with minimal thickness.
  • Loft Spaces: Perfect for insulating lofts without reducing usable space.
  • Sheds and Garden Rooms: Offers an easy-to-install solution for insulating outbuildings and other non-traditional spaces.
How to Install Multifoil Insulation

There are many different methods to correctly installing Multi Foil insulation due to it’s variable uses, but one common technique used to insulate solid walls is to apply horizontally over battens secured to the wall, using staples or a nail gun to secure the insulation rolls. Each layer is overlapped and sealed with Insulation tape to form an airtight seal. It is then finished with counterbattens to ensure an air gap and a secure fit. In pitched roofing and over-joist flooring, a similar method is used. 

Benefits of Multi Foil Insulation

Multi Foil insulation is an innovative product with a variety of benefits that set it apart from other types of insulation. It’s biggest benefit is that it provides comparatively effective thermal insulation, with a much slimmer form factor than other types of insulation. This can be really helpful in situations where traditional forms of insulation would impact the available floor space  - particularly in solid wall conversions such as garages and garden rooms, or in van conversions or small loft conversions. 

Due to it’s slim form factor and general versatility, it’s also a very DIY-friendly product that can be cut with insulation scissors or a sharp utility knife, and attached with standard tools such as staples or a nail gun. 

Not only that, but due to it’s reflective and flexible nature, many types of multi-foil insulation serve a dual purpose as radiant barrier - actively reflecting heat back into the property and away from the property (keeping it cool in summer as well as warm in winter) - and as a vapour barrier when fitted with an airtight seal.