Tri-Gas Membrane
Verified by manufacturer 10 months ago
MD
MD
Tri-Gas Membrane is a high performance gas membrane for use in situations where resistance to methane, carbon dioxide and/or radon gas is required.
Application
Generally used within construction applications, predominantly within the foundation design.
Description
A high performance gas membrane for use in situations where resistance to methane, carbon dioxide and/ or radon gases is required. The multilayer 0.4 mm thick membrane includes an ultralow permeability aluminium foil core encapsulated between a number of additional low density polyethylene (LDPE) layers and a reinforcing grid to form a single sheet membrane.
Features and benefits:
- Resistance properties with low permeability to ground gases including methane, carbon dioxide and radon.
- Provides additional damp proofing protection to the structure (no requirement for a separate DPM).
- Reinforced membrane construction with high resistance to both puncturing and tearing.
- Complies with relevant industry codes and guidance including CIRIA and BS 8485:2015+A1:2019.
General information
Color | Silver Green |
Material | Polyethylene Aluminium Manufacturer guidanceReinforced low density polyethylene with an aluminium foil core. |
Length | 50000 mm Manufacturer guidanceRoll length. |
Width | 2000 mm |
Height | 0.4 mm |
Uniclass | |
CAWS | 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 J40/145 Loose-laid weldable polyethylene gas-retardant membranes J40/146 Loose-laid weldable polyethylene gas-retardant membranes with anchors J40/35 Loose-laid plastics or rubber gas-retardant membranes |
Specification data - Plastics sheets
Material | Polymeric composite incorporating an aluminium layer. |
Purpose | Gas retardance. |
Performance characteristics | |
Tensile strength (minimum) | 370 N/mm. |
Tear resistance | 295 N. |
Elongation to break | 22%. |
Resistant to underground gases | Carbon dioxide.Methane.Radon. |
Water vapour resistance (minimum) | 0.01 gsm/day. |
Form | Reinforced. |
Physical properties | |
Colour | Green and silver. |
Weight (minimum) | 370 g/m². |
Dimensions | |
Thickness (minimum) | 0.4 mm. |
Width (minimum) | 2.0 m. |
Roll length (minimum) | 50.0 m. |
Resistance to underground gases | 0.041 ml/day/m2/atm (Methane). 0.195 ml/day/m2/atm (CO2). |
Sustainability data
Material | Polyethylene Aluminium Manufacturer guidanceReinforced low density polyethylene with an aluminium foil core. |
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 |
|---|---|---|
 IFC | - | 1 |
 Revit | Revit 2017 | 1 |
Literature
Cordek VOC & Ground Gas Brochure
Cordek Tri-Gas Membrane Data Sheet