A reliable insulation option, this SuperFOIL SFNC is the only non-combustible multifoil available on the market. This product has been certified by BRE and has achieved the highest rating (A1) under the latest European Fire Classification system. Both flame and fire retardant, it makes the perfect choice for situations where fire resistance and insulation are necessary.
SuperFOIL SFNC is versatile for roofs, walls, and floors with an rValue of 1.54m²K/W in pitch roofs and 1.99m²K/W in walls (using air gaps). It can also be used over and under rafters for higher performance in a ‘duet’ format. SuperFOIL is also compatible with other insulation materials like mineral wool or foam board for combi installation, to achieve the necessary insulation uValue.
Features & Benefits: Non-Combustible Multi-Foil Insulation by SuperFOIL SFNC – 1.2m x 8.35m
- 8.35m length x 1.2m width x 20mm thickness installed
- 10.02m² roll size
- Weight per roll: 30kg
- Three layers
- Thermal conductivity: 0.0318W/mK
- Perfect choice for situations where fire resistance and insulation are necessary
- Flame and fire retardant
- Non-combustible
This product has excellent thermal resistance. rValues (air gaps included) are as follows: for roofs, the rValue is 1.54m²K/W, for walls it is 1.99m²K/W, for floors it is 3.46m²K/W, and the core rValue of this product is 0.62m²K/W.
Installation Over Rafters
- To install SFNC SuperFOIL over rafters, roll out and staple at least 500mm (or as needed), and use reinforced tape to cover joints and overlap widths by at least 75mm (50mm-100mm range). Cut and seal SuperFOIL around rafters and seal it to the cavity wall insulation or wall plate for an airtight envelope, then fix tiles, fix roofing battens parallel to rafters, and apply breathable roof underlay all according to manufacturer’s guidelines.
Installation Under Rafters
- If installing under rafters, roll out SuperFOIL on roof top, batten horizontally, staple at least 500mm (or as needed), and use reinforced tape to cover joints and overlap widths by at least 75mm (50mm-100mm range). Staple SFNC SuperFOIL onto timber wall plate at the bottom of the roof pitch for an airtight envelope, and fix battens across rafters with an air gap between SuperFOIL and plasterboard for optimal performance.
Please note:
- It is advised that contact temperatures are no more than 575?.
- To discuss application types (combi, duet), please call our sales team.




















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