This SF40 Multi-Layer Foil Insulation from SuperFOIL boasts a remarkable 68% increase in performance compared to SuperFOIL's standard multifoil. Not only does it beat any multifoil competitor product's R-Value, but it also offers extreme cost-effectiveness, making it a fantast... Read More
SUPER Rewards Earn points and build more across our SUPERSTORES!
Find out more
This SF40 Multi-Layer Foil Insulation from SuperFOIL boasts a remarkable 68% increase in performance compared to SuperFOIL's standard multifoil. Not only does it beat any multifoil competitor product's R-Value, but it also offers extreme cost-effectiveness, making it a fantastic choice for your insulation needs.
SuperFOIL are committed to building superior multifoil insulation. Combining an impressive 37 layers of technical innovation, this SF40 Multi-Layer Foil Insulation achieves maximum efficiency, surpassing previously thought possible values within the industry. These layers include two layers of polypropylene-reinforced heavy outer laminated foil, twelve aluminium-coated reflective foil PET layers and six layers of loft quilt. With its enhanced thickness and radiant reflective and air barrier properties, this insulation offers numerous benefits over traditional non-reflective, open-faced insulation, such as glass fibre.
What's more, this SuperFOIL SF40 Insulation comes with CE-certified vapour and water barrier outer layers, ensuring exceptional performance. With efficient use of space, it maximises your roof and wall insulation. With the strongest multifoil material, it also aids in installation, reducing waste and providing excellent value for your money. In terms of thermal resistance, it achieves outstanding rValues of 3.58m²K/W for pitched roofs, 4.04m²K/W for walls, 3.58m²K/W for flat roofs and 5.69m²K/W for floors.
Additionally, with a simple installation process, this Multi-Layer Foil Insulation can be fitted horizontally or vertically and requires a 25mm air gap. It can be easily cut with a knife or scissors to tailor to your specific needs, providing an air seal and radiant barrier. Thanks to the LABC registered detail, complying with Building Regulations is straightforward.
Please note:
Question:
Does this have an integral breather membrane?
Answer:
This product doesn't have an integral breather membrane but we do offer one that does - https://www.insulationsuperstore.co.uk/product/superfoil-sf40bb-breathable-multifoil-insulation-roll-15m-x-10m.html
Question:
Can superfoil be used to insulate a large hot water tankused for a heat store ?
Answer:
To help answer your query, you could use something like the SUPERFOIL SF40 to wrap around the hot water tank. This product in particualr can withstand direct contact up to 70°C, and it could be furhter increased by introducing a layer of ply between them.
Question:
Can this be used with a combination of insulation between rafters such as Kingspan or Celotex?
Answer:
Yes you can use Celotex between the rafters, and the typical method of installation for the SF40 would be under the rafters and can be stapled direct.
Question:
What tape should be used with SuperFOIL SF40?
Answer:
To ensure a consistant air-tight seal, 100mm wide foil tape should be used. We recommend SuperFOIL Superior Tape for it's high strength and enhanced adhesive which allows it to be used even in cold weather.
Question:
What size Staples do I need to fix SuperFOIL SF40?
Answer:
We recommend using a minimum 30mm staples for use with SuperFOIL SF40. The staples should be adequate size to hold the SuperFOIL in place until your battens are fitted forming the permanent fixing.
Question:
What size Battens should I use with SuperFOIL SF40?
Answer:
Minimum of 50mm depth battens to allow the material to expand fully and maintain the required airspace for full thermal performance.
Products We Recommend
Product Enquiry Form
SuperFOIL U-Value Calculation Request Form
0% for 4 months
Learn more
Start right away with 4 months to pay
Enjoy 0% over 4 monthly instalments*
* Subject to status. Minimum spend required. T&Cs apply.
Sorry
It seems you are running an older version of Internet Explorer. Our site does not support these old browsers as they do not house the technology that allows our site to be safe and secure.
If you wish to access our site please either upgrade your browser or download an alternative.
