Class “0” Fire Propagation & Class “1” Spread of Flame

  • 3 IN 1 DESIGN

    Provides a Foil Insulation, Vapour Control Layer & Radiant Barrier

  • SuperFOIL can achieve any U-value

    Whether Used on it's Own or in Combination with Other Insulation Types

  • Easy To Install

    No Specialist Tools Required


    Ideal for New Build & Retrofit - Roofs, Walls & Floors

FR Range - The same high performance, but with enhanced protection for added peace of mind

Our “FR” products offer the same U-values as our standard Multifoil range and have achieved a “class 0” rating for BS 476.

As with the majority of our products, our fire rated range is a certified, 3 in 1 product. Not only will it provide a high performing insulation, but you also benefit from a much-needed vapour control layer and radiant barrier. What this means for you is that you protect your project from condensation and you can rest assured that your home will be the right temperature, whatever the season.

William Bown on site at Royal Papworth Hospital

SFNC - The perfect solution for commercial and High Rise building projects

Papworth (117)

Our SFNC is the safest of the safe. It has achieved the highest euroclass rating possible of A1 “Non-combustible”.  SFNC is produced from specially made, high tech materials and is designed to be used in high rise and commercial buildings. This product has been used in many high profile builds (can be seen on our case studies page).

Despite it’s slim appearance, SFNC provides exceptional thermal performance and is fully flexible. As with all SuperFOIL products, it is quick and easy to install.

SuperFOIL is easy to install and requires no specialist tools for fitting. Due to its clever design, you will have minimal wastage, unlike more traditional types of insulation. Our full range is made from 40% recycled materials and is fully recyclable at the end of its 50+ year lifespan.

Save Yourself Time and Money by choosing the right insulation for the job!

MultiFOIL Insulation


  • 2.27 R VALUE

    R Value of 2.27 When used in a roof

  • 40mm THICK

    1.5m Wide by 10m Long

MultiFOIL Insulation


  • 3.58 R VALUE

    R Value of 3.58 When used in a roof

  • 65mm THICK

    1.5m Wide by 10m Long

MultiFoil Insulation


  • 4.42 R VALUE

    R Value of 4.42 When used in a roof

  • 100mm THICK

    1.5m Wide by 8m Long

Multi Foil Insulation


  • 1.54 R VALUE

    R Value of 1.54 When used in a roof

  • 20mm THICK

    1.2m Wide by 8.3m Long

Technical Information

Core Performance1.31 R Value2.62 R Value3.46 R Value0.62 R Value
Roof Performance2.27 R Value3.58 R Value4.42 R Value1.54 R Value
Wall Performance2.73 R Value4.04 R Value4.88 R Value1.99 R Value
Floor Performance4.37 R Value5.69 R Value6.53 R Value3.68 R Value
Reaction To Fire (Euroclass)Class E (Without Plasterboard)Class E (Without Plasterboard)Class E (Without Plasterboard)Class A1 "Non-Combustible"
Fire Propagation (BS476-6)Class 0Class 0Class 0Class 0
Spread Of Flame (BS476-7)Class 1Class 1Class 1Class 1
Water Vapour Resistance1200MNs/g1200MNs/g1200MNs/g1200MNs/g
Resistance To Water PenetrationW1W1W1W1
Tensile Properties (Length)238 / 227 N/50mm238 / 227 N/50mm238 / 227 N/50mm238 / 227 N/50mm
Tensile Properties (Width)111 / 100 N/50mm111 / 100 N/50mm111 / 100 N/50mm111 / 100 N/50mm
Resistance to Tearing (Length)179N179N179N179N
Resistance to Tearing (Width)179N179N179N179N
Elongation (Length)61 / 57%61 / 57%61 / 57%61 / 57%
Elongation (Width)92 / 87%92 / 87%92 / 87%92 / 87%
Flexibility at Low Temp.-40°C-40°C-40°C-40°C
Glass Fibre Reinforced Heavy Laminated Aluminium Foil2222
Aluminium Coated Reflective Foil PET Layers413200
Thermo Foam Separation Layers016240
Loft Quilt 80g/sqm Layers5690
High Density E Glass Fibrematte0001
Total Layers1137553


Roof schematics
Wall schematics
Floor Schematics

Pitched Roof

Tiled Roof and With Multiple Windows

SuperFOIL insulation is suitable for use in a variety of roofing insulation applications, including pitched roofs and can be used as part of a warm roof, cold roof or hybrid system design.

To ensure you achieve your desired performance SuperFOIL can be used on its own, in multiple layers or in conjunction with other more traditional types of insulation such as glass wool or PIR.

SuperFOIL is typically installed as a continuous layer either above or below rafters as this avoids the performance losses associated with cold bridging from timbers that can reduce performance by up to 15%.

When installing simply roll out and staple the SuperFOIL across your rafters, where the edge of rolls meet overlap the edges and seal with SuperFOIL tape. Once taped and sealed, installed a counter batten to create an air gap then follow up with your next layer (typically plasterboard).

Flat Roof

SuperFOIL is ideal for use in flat roof projects due to its high vapour resistance and continuous method of installation.

With a vapour resistance of 1200MNs/g for SuperFOIL’s outer layers are over twice the performance of a typical 500gauge polythene meaning much less vapour is able to penetrate into your roof structure that would otherwise cause condensation. Combine this with SuperFOIL’s continuous install method either above or below joist’s and you achieve a high performance seal to minimise the risk of condensation.

Installation is very similar to that of a pitched roof, simply stapling the product in place and ensuring that any gaps are sealed fully with SuperFOIL tape. When used in conjunction with a single ply membrane no additional ventilation is typically required (A full condensation risk should be undertaken to ensure there is no risk).

Surrey Conservatory Flat Roof


Old Grey Building With Two Chimneys

SuperFOIL is ideal for use in solid wall and timber frame constructions be it new build or retrofit projects. Adding a single layer of SuperFOIL to a solid wall can take it from un-insulated to meeting & exceeding current building regulation requirements in as little as 70mm.

Our SF40 insulation is hugely popular for dry lining schemes with a single layer of SF40 achieving as low as 0.22U in a wall with no other insulation required.

SuperFOIL can be used either internally or externally on both solid & timber frame walls to achieve your desired performance. SuperFOIL is particularly well suited to timber frame constructions as stud’s provide the ideal frame work to install onto with minimal build up whilst achieving very high performance levels.


SuperFOIL insulation can be used on all floor types but is ideally suited to suspended timber frame floors (If looking for solid floor insulation please see our SFUF).

By using SuperFOIL in your floor you are able to take advantage of low emmisivity air spaces with a  downward heat flow. Whilst in roofs & walls performance stops improving at 13mm & 20mm depths respectively, downward heatflow air cavities keep increasing in performance up to a 300mm depth meaning you can achieve very high performance with minimal insulation requirements.

Wooden Floor White Walled Room

All SuperFOIL Insulation products are  independently tested by notified bodies and 3rd party certified laboratories to comply with relevant UK building regulations for use as part of construction and European regulations such as CE.

SuperFOIL’s thermal performance has been tested to BS EN ISO 12667, ISO 8301 by BBA ( British Board of Agrément), a UKAS certified body and internationally accredited laboratory. SuperFOIL Product’s also have a range of other accreditation’s to comply with UK, EU & CE regulations to give added confidence and speed up the specification process from highly respected bodies such as BBA, LABC, DIBT & ZAG.

SuperFOIL can be used in many different ways to meet the requirements of Building Regulations for your particular project, we provide a service of U value calculations for elemental or SAP assessment methods.

BR443 in Part ‘L’ of Building Regulations specifies approved thermal test methods. SuperFOIL also provides additional performance by reducing air moment (conduction) and by providing a radiant barrier (radiation /solar gain) helping to keep you home warmer in winter & cooler in summer.

SuperFOIL has also been tested for its Fire performance properties by approved bodies BRE Global & BTTG.  SF19/40/60 FR has a high performance classification, achieving “Class 0” when tested to BS 476.


Our FREE guide gives you all the information on saving time and money when insulating your home, and how to really make a difference to the comfort of your rooms.

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SuperFOIL Insulation Guide