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SuperFOIL SF40BB Breathable Multifoil Insulation Roll - 1.5m x 10m

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£271.20 Incl. VAT
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Manufactured using 40% recycled materials, SuperFOIL SF40BB is a sustainable 2-in-1 multifoil insulation and breather membrane roll designed for use in walls and roofs of new builds, renovation projects and extensions. 19 layers make up the 75mm thick roll to provide outstanding R-Values. Thanks to its breathable qualities, SuperFOIL SF40BB can be used on its own or as part of an insulation build-up to achieve specific u-values.

SuperFOIL SF40BB is W1 watertight so it’s suitable for application in walls and floors. It also prevents mould growth and the spread of damp and as such it will reduce the risk of condensation. SuperFOIL SF40BB is a sustainable product made up of reflective coated breather membrane, perforated aluminium coated reflective foil, perforated reinforced heavy outer reflective foil and 8 layers of 80g/sqm loft quilt.

SuperFOIL SF40BB Multifoil Insulation Specification

Length: 10m
Width: 1.5m
Thickness: 75mm
Coverage: 15sqm
Roll Weight: 17.5kg
Roof R-Value: 3.67
Wall R-Value: 3.98


Length 10m Width 1500mm


Permeability Vapour Permeable Roll Size 15m2

Questions & Answers


Can I use this material on my solid walls, if so can I secure it straight to the wall then use the 50mm battens prior to plaster boarding


This would be suitable for a wall application, and can them be battened over. 


What tape should be used with SuperFOIL SF40BB?


SuperFOIL SF40BB includes an extra 100mm overlap on the outer breather membrane. This overlap has integrated double-sided tape to create an airtight seal of joints. If additional tape is required for cuts, and edges etc, we recommend SuperFOIL Double Sided Butly Overlap Tape for it's high strength and enhanced adhesive which allows it to be used even in cold weather.


What size Staples do I need to fix SuperFOIL SF40BB?


We recommend using a minimum 30mm staples for use with SuperFOIL SF40BB. The staples should be adequate size to hold the SuperFOIL in place until your battens are fitted forming the permanent fixing.


What size Battens should I use with SuperFOIL SF40BB?


Minimum of 50mm depth battens to allow the material to expand fully and maintain the required airspace for full thermal performance.

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