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Tri-Gas Membrane

Verified by manufacturer 3 months 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

Polyethylene

Aluminium

Manufacturer guidance

Reinforced low density polyethylene with an aluminium foil core.

Length

50000 mm

Manufacturer guidance

Roll length.

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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