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Tri-Gas Membrane

Verified by manufacturer 1 month ago

MD

Cordek Ltd Variant:

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.

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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

Reinforced low density polyethylene with an aluminium foil core.

Polyethylene

Aluminium

Length

Roll length.

50000 mm

Width

2000 mm

Height

0.4 mm

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary

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).

BIM objects

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This BIM object has been authored to meet the requirements of the NBS BIM object standard.

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Platform Compatible Version
IFC
-

1

Revit

Revit 2017

1

Literature

Cordek VOC & Ground Gas Brochure

Cordek VOC & Ground Gas Brochure

Cordek Tri-Gas Membrane Data Sheet

Cordek Tri-Gas Membrane Data Sheet

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