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VOLTEX GB-500 - Gas vapour and waterproofing barrier

Verified by manufacturer 25 days ago

CETCO Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

Gas vapour and waterproofing barrier for underground structures.

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Application

  • Suitable for use as a gas vapour resistant barrier to restrict the ingress of radon, methane, carbon dioxide gases and water into buildings from landfill and naturally-occurring sources.
  • Suitable for installation on sites where passive or active ventilation measures are required; used in conjunction with GEOVENT ventilation composite and relevant vent connectors as applicable.
  • Suitable for both non-hydrostatic and hydrostatic conditions, where protection against gases and water is required.

Description

A membrane composite comprised of a 500 micron thick, multilayer, polyethylene and EVOH geomembrane with integrated bentonite geotextile waterproofing tanking membrane. Along the two roll edges, the two layers are not integrally bonded for 200 mm to facilitate ease of welding or taping the PE geomembrane overlap and then overlapping the geotextile layer component.


VOLTEX GB-500 is designed for use as a gas vapour waterproofing barrier to resist the ingress of radon, methane, carbon dioxide gases and water into buildings from landfill and naturally-occurring sources.


Rolls should be stored on stable/level ground and loaded not more than five rolls high, with no other material stacked on top.

The rolls should be stored off the ground and protected from exposure to precipitation and prolonged direct sunlight.


Features and benefits:

  • Can be installed on sites with passive or active sub-slab ventilation measures; used in conjunction with GEOVENT ventilation composite and relevant vent connectors as applicable.
  • Can be used in both non-hydrostatic and hydrostatic conditions.
  • Fully complies with the latest codes of practice for gases and water as published by BRE, CIRIA and BSI (BS 8485:2015+A1:2019; BS8102: 2009), and is suitable for use as a gas and water protection system for NHBC AMBER 1 and AMBER 2 site characterizations.

General information

Material

Polyethylene

Shape

Rectangle

Length

10000 mm

Guidance for specification option:

Roll length.

Width

1660 mm

Guidance for specification option:

Roll width.

Height

5 mm

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J40/145 Loose-laid weldable polyethylene gas-retardant membranes

J40/35 Loose-laid plastics or rubber gas-retardant membranes

Specification data - Plastics sheets

Material

Multilayer, polyethylene and EVOH geomembrane with integrated bentonite geotextile waterproofing tanking membrane.

Purpose

Gas vapour and waterproofing barrier.

Guidance for specification option:

For underground structures.

Performance characteristics

-

Tensile strength (minimum)

550 N/50 mm (MD), 400 N/50 mm (CMD) to EN 12311-1.

Tear resistance

300 N (nail shank, MD and CMD) to EN 12310-1.

Elongation to break

500% (MD and CMD) to EN 12311-2.

Resistant to underground gases

Carbon dioxide.

Methane.

Radon.

Form

Reinforced.

Physical properties

-

Weight (minimum)

3200 g/m² to EN 1849-2.

Dimensions

-

Width (minimum)

1660 mm.

Guidance for specification option:

Roll width.

Roll length (minimum)

10 m.

Puncture resistance

PE liner: 170 N to ASTM D 4833.

Static load resistance

20 kg to EN 12730.

Watertightness

After artificial ageing: Tight to EN 1296 (12 weeks), EN 1928 B, Against chemicals: Tight to EN 1847 (28 day/ +23°C), EN 1928 B.

Methane transmission rate

≤0.1 mL/m² x day x atm to EN ISO 15105-1.

Radon diffusion

7.1 x 10^-14 (+/- 0.8 x 10^–14) m²/s to ISO/ TS 11665-13.

Carbon dioxide transmission rate

<1.0 mL/m² x day x atm to EN ISO 15105-1.

Moisture vapour transmission rate

≤0.1 cm³/m² x day x bar to EN ISO 15105-3.

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BENTONITE WATERPROOFING SYSTEM FOR STRUCTURES VOLTEX GB-500

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