Verified by manufacturer 3 months ago
Foil laminated and reinforced polythene methane gas barrier and damp proof membrane.
For use as a methane and CO2 gas barrier, exceeds the requirements of BS 8485:2015 groundwork applications. Material has 390 GSM weight and ≥0.4 mm thickness. Suitable for use in BRE report BR 211-2015 radon applications.
A premium specification multi-layer laminate damp proof membrane (DPM) incorporating reinforcement and an aluminium foil core. Novia Methane Pro 390 is approved for Methane gas applications and exceeds the requirements set out in British Standard BS8485 and can be used in radon gas applications or as a high performance damp proof membrane. Novia® Methane Pro 390 carries UKCA approval.
All Novia® Methane Pro 390 membrane joints and perimeter edges must be correctly taped and sealed using the two tape sealing system (50 mm double sided butyl tape and 96 mm aluminium foil tape) to ensure a fully compliant gas tight seal or this product is also suitable for welded installations. The membrane is not suitable for applications where hydrostatic pressure is present i.e. building in to a blockwork or brickwork wall.
Features and benefits:
Color | Blue Silver |
Material | Foil Guidance for specification option: Aluminium foil core. Polythene Guidance for specification option: Multilayer virgin polythene laminate. |
Length | 50000 mm |
Width | 1600 mm |
Warranty description | Lifetime |
Uniclass | |
CAWS | D21/350 Gas-retardant membrane J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes J40/35 Loose-laid plastics or rubber gas-retardant membranes |
Product range |
Material | Multilayer virgin polythene laminate with an aluminium foil core. |
Purpose | BS 8485:2015 compatible methane and CO2 barrier. Also acts as a radon barrier and DPM; Complies with BS EN 13967, Type A DPM. |
Standard | EN 13967. |
Performance characteristics | |
Tensile strength (minimum) | MD/CD: >280/>200 N/50 mm. |
Tear resistance | MD/CD: >100/>200 N. |
Elongation to break | MD/CD: >15/>15%. |
Physical properties | |
Weight (minimum) | 390 g/m². |
Dimensions | |
Thickness (minimum) | ≥0.4 mm. |
Width (minimum) | 1.6 m. |
Roll length (minimum) | 50 m. |
Water vapour permeability in sd | 5000 m. |
System methane transmission rate | Membrane only: ≤0.1 ml/day/m²/atm. |
Alkali and age durability | Pass in accordance with EN 1847 and EN 1926. |
Water tightness at 2 kPa | Pass in accordance with EN 1928. |
Tape | Novia® aluminium foil tape 96 mm and Novia® double sided butyl tapes. |
Contains Red List materials | No |
Country of material origin | Europe |
Country of product manufacture | Europe |
Material | Foil Guidance for specification option: Aluminium foil core. Polythene Guidance for specification option: Multilayer virgin polythene laminate. |
Recyclability | Fully recyclable |