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RIW Structureseal GPT
Pre-applied, type A tanking, gas and hydrocarbon membrane.
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 | |
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 resistanceTo 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
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