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CHESTERFOILSelf-Adhesive Vapour Barrier
Chesterfoil is designed for use as a high performance vapour barrier. Manufactured using a high strength aluminium core with a self-adhesive underside and release film, Chesterfoil can be used in a wide variety of applications within the construction industry.
>> Vapour proof
>> Air tight
>> Extra strong reflective aluminium foil
>> Self-adhesive
>> Gas Resistant
>> Cold applied
>> High tear resistance
>> Normal or high humidity use
>> Quick and easy to use
>> Wide range of building applications
Product Information
CHESTERFOILSelf-Adhesive Vapour Barrier
Uses and Applications > When fitted Chesterfoil will restrict the passage of warm moisture laden air from within the building,
providing an airtight and vapour proof seal, in accordance with Energy Conservation Regulations.
> Chesterfoil can be used as a vapour barrier within a wide variety of waterproofing systems ie built-up felt roofing, single-ply membranes, liquid applied waterproofing, metal roofing etc.
> Chesterfoil has a very high tear resistance and can be used on many types of decking including metal, plywood, osb boarding, concrete, plasterboard, after suitable preparation using Chesterfelt self-adhesive primer.
> When installed, Chesterfoil creates an airtight/vapour proof seal which can accommodate normal or high humidity conditions.
> Chesterfoil has a self-adhesive cold applied direct application and is quick, easy and safe to use.
Installation InformationSubstrate All surfaces should be without voids, sharp protrusions and be smooth, clean, dry and free of dust, grease, frost and dew.
Priming After suitable preparation, Chesterfelt self-adhesive primer should be used on all surfaces including metal deck, plywood/osb, concrete/screed, bituminous substrates (please observe coverage rates on primer instructions).
Laps Side and end laps should be 150mm wide sealed down firmly using a hand roller (no primer required).
T-Joints 45° cutting for the overlap corner.
Please note application temperature advised +10°c. The use of a hot air gun can aid application during cold temperatures up to +10°c.
Characteristic Test Method Units / Spec Value / Statement
Length BS EN 1848-1 +/- 5% 40 mtr
Width BS EN 1848-1 +/- 5% 1.08 mtr
Weight BS EN 1849-1 +/- 10% 29kg
Thickness BS EN 1849-1 +/- 10% 0.72mm
Resistance to Tearing BS EN 12310-1 N 302 / Longitudinal 302 / Transverse
Tensile Strength BS EN 12311-1 N/200mm 998.8 / Longitudinal
Tensile Strength BS EN 12311-1 N/200mm 878.2 / Transverse
Watertightness BS EN 1928:2000 Method A Pass Pass
Water Vapour Transmission ISO 15106 (WVTR)/g/m2, day 0.005
Methane Transmission ISO 15105 ml/m2, day, atm 4.0
Low Temperature Flexibility BS EN 1109 -15˚c for 1 hr Pass
Resistance to Static Loading BS EN 12730 7kg/25kg Pass
Standards
Chesterfoil is manufactured in the UK according to management systems ISO9001/2015 CE 13707
Chesterfelt Ltd, Foxwood Way, Chesterfield, S41 9RA01246 268000 Email: [email protected] www.chesterfelt.co.uk
