Multifoil Insulation Actis Triso Super 10 Plus - 1.6m x 10m Roll

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£213.84 Incl. VAT
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Product Description


Triso Super 10 Plus thin thermo-reflective insulation is ideal for pitched roof, over rafter, under rafter, attic conversions and dormer applications. In an over-rafter application, Triso Super 10 Plus multifoil insulation has the specific advantage of minimising the height of the roof line, due to the relative thinness of the construction.

The multi foil insulation is only 35mm thick, and is thermally equivalent to 210mm of mineral wool. Triso Super 10 Plus is designed to be airtight, water tight and water vapour resistant. It acts as a barrier against cold air infiltration and prevents warm air escaping.


Length: 10m.
Width: 1.6m.
Roll size: 16m2.
Roll weight: 12kg.
Thickness: 35mm.
Thermal performance: 0.04 W/mK.
Air premability: airtight.
Fire rating: Euroclass F - EN 13501-1.
Water vapour resistance: Z > 500MN.s/g-1.

Installation guide

  • Ensure an air gap of 25mm minimum on either side of the insulation.
  • Felted roof : ensure an air gap of 50mm minimum between the insulation and the felt with ventilation from eaves to ridge according to British Standards.
  • Pull the insulation taut and staple every 50mm to the rafters or timber support using galvanised staples, 14mm minimum. 20mm stainless steel staples are recommended.
  • Overlap the insulation 50mm to 100mm at each joint and staple every 50mm onto the rafter or timber support batten.
  • Cover all joints with Actis isodhesiv reflective tape to give an air tight finish.
  • Fold all finishing edges under by 50mm minimum, staple every 50mm and secure with final batten.
  • All exposed edges must be sealed with reflective tape to prevent ingress of moisture to the inner layers of the insulation.




Material Multifoil Coverage 16m2 Product Type Roll Application Above Rafter
Below Rafter

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Product Reviews

5 / 5 4 reviews
Mark Statham
14th February
Good product used hundreds of times never fails
7th April 2020
Effective insulation but I have yet to find a fool-proof way of screwing counterbattens onto this. You can't pre-drill because the fibre in the insulation wraps round the drill bit, melts and snaps it. I had to use self-drilling woodscrews but these were even worse. And once the insulation melts onto the screw, you can't back it back out of the batten. Best way I found is to drill the screw until you see it pulling at the insulation behind the batten you are fixing and then belting it a few times with a hammer to drive it through. Then finish screwing. It is possible to get the screw straight in if you can apply a lot of clamping pressure against the batten but that's not always easy when you are installing at heights. Even the hammer method is only effective say 75% of the time. Keeps the room nice and warm, a huge difference but I reckon half of that is heat from The Rage.
Richard Varley
19th March 2020
Good product, less irritating than conventional rock wool, easy to fit, U- value far better
11th March 2020
Great product delivered on time
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Multifoil Insulation Actis Triso Super 10 Plus - 1.6m x 10m Roll

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