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RIW Structureseal GPT

RIW

Pre-applied, type A tanking, gas and hydrocarbon membrane.

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Application

The product is pre-applied for use in basements and sub-structures, floor slabs at ground level, boundary line applications and retaining walls. Can be applied to:

  • Concrete structures with extended below ground level.
  • Formwork.
  • Blinding layer.
  • Piling.

Description

Pre-applied, type A tanking membrane, suitable for use where protection against the ingress of hazardous ground gases, volatile organic compounds (VOCs) and hydrocarbons is required.


Features and benefits:

  • Provides hydrocarbon, water, VOC, methane, radon carbon dioxide protection.
  • Forms a mechanical bond to the external face of the concrete structure.
  • High puncture resistance.
  • Long-lasting jointing and sealing system.
  • Welded joints possible.
  • A separate tanking or damp proof membrane is not required.
  • Pre-applied tanking system.
  • Robust.
  • Compliant with BS 8485: 2015, BS 8102: 2009, BS EN 13967, BS 8485:2015+A1-2019 and CIRIA C748.
  • CE marked.

General information

Color

Grey

Material

Ethylene-vinyl alcohol copolymer (EVOH)

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J40/140 Loose-laid plastics or rubber sheet gas-retardant membranes

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

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

Specification data - Plastics sheets

Material

Ethylene-vinyl alcohol copolymer (EVOH).

Purpose

Gas retardance.

Water resistance.

Performance characteristics

-

Tensile strength (minimum)

To EN 12310-1

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

Machine direction (MD) / Cross machine direction (CD)

Tear resistance

To EN 12310-1

300 N / 400 N.

Machine direction (MD) / Cross machine direction (CD)

Resistant to underground gases

Carbon dioxide.

Carbon dioxide permeability (to BS EN ISO 15105-1): 3.01 ml/m²/day/atm.

Methane.

Methane gas permeability (to BS EN ISO 15105-1): 0.13 ml/m²/day/atm.

Radon.

Radon permeability (SP Method 3873): 3 x 10-12m².s.

Hydrocarbons.

VOC.

Physical properties

-

Colour

Grey.

Weight (minimum)

33 kg per roll.

Dimensions

-

Thickness (minimum)

1.5 mm.

Width (minimum)

1.9 m.

Roll length (minimum)

25 m.

Sealed Laps

Adjacent laps (welded or taped), 100 mm wide (onto selvedge).

Water vapour transmission

To BS EN 1931, 0.14 g/m²/day.

Literature

RIW Structureseal GPT

RIW Structureseal GPT

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