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Multi-layer Air Bubble Insulation SFBA MP by SuperFOIL - 1.5m x 25m

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£79.22 Incl. VAT
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SFBA MP is waterproof and resists the passage of moisture through walls, floors and ceilings. SFBA Met Poly is a multi-layer air bubble insulation with external layers of aluminium metalized PET. This provides a corrosion resistant and water tight insulation system. It can be used for insulating under floor, in walls, in dry lining such as for cellars and can also be used in greenhouses and other industrial applications.

SFBA reflects heat, just like a mirror reflects light. SFBA is an ideal radiant barrier for supplementing existing insulation to keep your house warmer is winter and cooler in summer. SFBA is a high performance insulation and can utilise low emissivty air gaps to maximise the thermal capabilities.

SuperFOIL SFBA is the UK’s leading bubble foil insulation. SFBA is designed to maximize insulation performance with a quick and easy installation. SFBA is an ideal radiant barrier for supplementing existing insulation, helping to keep your house warmer in winter and cooler in summer.

Single bubble double foil.


Length: 25m.
Width: 1.5m.
Roll size: 37.5m2.
Roll weight: 7.5kg.
Thickness installed: 3mm.
Thermal Resistance - rValues:
For pitched roofs: 1.03 R.
For Walls: 1.45 R.
For Floors: 2.77 R.
Layers: 3 - air seal & radiant barrier.
Colour: reflective silver foil.


SFBA should be installed on the "warm" side of the insulated structure, with special care being taken to ensure that all seams and holes are sealed effectively to render the whole structure moisture and vapour proof and to improve thermal performance.

It is important that SFBA is installed as a continuous barrier in order to prevent vapour entering the wall or the roof.

Fixing & jointing

All laps should be a minimum of 50mm and be sealed using SF jointing tape. Particular care is required when sealing around penetrations. Where the barrier is breached by construction elements, the aperture should be sealed with SuperFOIL tape.


Length 25m Thickness 3mm Width 1500mm


Facing Foil Application Internal Walls Product Type Roll Permeability Vapour Barrier
Material Polymer Bubble Coverage 37.5m2 Range SuperFoil

Questions & Answers


could this be used to improve heat loss from hot tub


While it can be applied as an intermediatry layer in certain applications, we'd strongly advise against trying to install this into a high moisture environment such as hot tub in a bathroom as it will provide little to no thermal benefit. 


What is the best way to fix the insulation to wood?


The SFBA MP should be fixed and joined with SF tape, if mechanical fixing is unavoidable then ensure that you seal the perforation with tape to ensure there is no thermal leakage. 


Can plasterboard be installed over this?


Yes, battens can be installed over this then plasterboard fixed to the battens. 

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