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Application

Can be applied horizontally as well as vertically and is used in all applications where structures require protection against ground water, seepage, ground gas, hydrocarbons, volatile organic compounds (VOCs) and other contaminants.


Typically used in the following constructions:

  • New build basements.
  • Foundations.
  • Tunnels.
  • Concrete structures below ground.


Description

A multi-layer polyethylene membrane with a bonded textile for pre applied applications as a waterproof membrane, specifically designed and manufactured to perform as a methane, carbon dioxide, radon, volatile organic compounds (VOCs), hydrocarbon and ground gas protection system.


It complies with the latest codes of practice as published by BRE, CIRIA (748) and BSI (BS 8485 and BS 8102). It is suitable for use as ground gas/ hydrocarbon protection for NHBC Green, Amber1, Amber2 and Red sites.


It comprises of Memtech Titan and a specialist bonded geotextile to provide a bonding layer for poured concrete, providing Type A barrier protection in accordance with BS 8102. Immersion testing has also been completed for chemical resistance to BS EN 14414 and BS EN 14415. CE marked to BS EN 13967.

General information

Color

Silver

Black

Material

Polyethylene

Size

Guidance for specification option:

Roll size (w x l).

Length

25000 mm

Width

2000 mm

Warranty description

60 year

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J40/130 Loose-laid plastics or rubber sheet oversite damp-proofing

J40/30 Loose-laid plastics or rubber sheet oversite damp-proofing

Specification data - Plastics sheets

Material

Polyethylene.

Purpose

Gas protection system.

Standard

To BS EN 14414 and BS EN 14415.

Performance characteristics

-

Tensile strength (minimum)

>550 N/50 mm and >400 N/50 mm.

Guidance for specification option:

To BS EN 12311-1: Longitudinal: >550 N/50 mm; transverse >400 N/50 mm.

Tear resistance

>300 N.

Guidance for specification option:

To BS EN 12310-1.

Resistant to underground gases

-

Manufacturer guidance

Gas permeability: Consult manufacturer's literature for information.

Fire performance

To BS EN ISO 11925-2, class E.

Third-party certification

CE marked to BS EN 13967.

Physical properties

-

Weight (minimum)

700 g/m².

Dimensions

-

Thickness (minimum)

1 mm.

Width (minimum)

2 m.

Roll length (minimum)

25 m.

Water tightness (to EN 1928)

-

Manufacturer guidance

  • Water tightness (to BS EN 1928, at 60 kPa): Pass.
  • Water tightness (to BS EN 1928, at 196 kPa - 20 m head): Pass.

Resistance

-

Manufacturer guidance

  • Resistance to static load (to BS EN 12730): >20 kg.
  • Resistance to impact (to BS EN 12691-B): 650 N.
  • Resistance to artificial ageing (to BS EN 1296): Pass.
  • Resistance to chemicals (to BS EN 1847): Pass.

Adhesion

-

Manufacturer guidance

Concrete peel adhesion (to ASTM D903 (mod)): >3 kN/m.

Water vapour transmission

0.14 g/m²/day.

Guidance for specification option:

To BS EN 1931.

Water vapour permeability

-

Manufacturer guidance

Consult manufacturer's literature for information.

Sustainability data

Contains Red List materials

No

Recyclability

Yes

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Literature

MemTech Ground Gas Protection

MemTech Ground Gas Protection

Ground Gas Ancillary Product Brochure

Ground Gas Ancillary Product Brochure

Case studies

Structural Waterproofing & Ground Gas Protection

Structural Waterproofing & Ground Gas Protection

Structural Waterproofing and gas proofing using membranes (twin solutions)

Structural Waterproofing and gas proofing using membranes (twin solutions)

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