Gas Resistant Self Adhesive Membrane
Verified by manufacturer 3 months ago
Self adhesive membrane designed for adhesion to suitably primed substrates. Generally used to provide combined damp proofing and gas protection to foundation constructions.
Application
Used within foundation construction, predominantly to prevent the transmission of ground gases in both horizontal and vertical applications. Can be installed in both vertical and horizontal applications, above and below ground.
Description
Self-adhesive membrane which is manufactured using an aluminium/ polythene laminate coated on one surface, with an additional layer of self-adhesive polymer modified bitumen.
Features and benefits:
- Incorporates an aluminium foil core to provide resistance to the passage of methane, carbon dioxide and radon gases.
- Provides additional waterproofing protection to the structure as part of an overall waterproofing system.
- Adhesion properties to primed surfaces.
- Can be installed in both vertical and horizontal applications above and below ground.
General information
Color | White Black |
Material | Bitumen Aluminium Laminate Guidance for specification option: Polythene laminate. |
Length | 20000 mm |
Width | 1000 mm |
Height | 1.15 mm |
Uniclass | |
CAWS | D21/350 Gas-retardant membrane D21/38 Gas-retardant membranes F30/360 Gas-resistant damp-proof courses/ cavity trays F30/54 Gas-resistant dpcs/ cavity trays J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes J40/35 Loose-laid plastics or rubber gas-retardant membranes |
Specification data - Bitumen sheets
Form | Damp-proof gas-resistant membrane. |
Material | |
Carrier material | Bitumen modified aluminium and polythene laminate. |
Thickness (minimum) | 1.15 mm. |
Strength | 3 N/mm to ASTM D1000. |
Elongation | 40% to ASTM D1000. |
Puncture resistance | 250 N to ASTM E154. |
Adhesion, 180° peel | 2 N/mm 180° peel, to ASTM D1000. |
Water vapour transmission | <0.1 g/m²/day to ASTM E96. |
Methane gas permeability | <0.03 ml/m²/day. |
Radon diffusion | 5.0 x 10^-14 m²/s. |
Colour | White and black. |
Dimensions | 1.0 x 20 m. |
Sustainability data
Country of product manufacture | United Kingdom |
Material | Bitumen Aluminium Laminate Guidance for specification option: Polythene laminate. |
BIM objects
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
| Platform | Compatible | Version |
|---|---|---|
 Revit | Revit 2016 | 5 |
 IFC | IFC2X3 | 2 |
Literature
Cordek VOC & Ground Gas Brochure
Cordek Gas Resistant Self Adhesive Membrane Data Sheet