RIW Structureseal GPT
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 polyethylene 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 and CIRIA C748.
  • CE marked.

Applications:

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.

General information

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing

J40/145 Loose laid weldable polyethylene gas retardant damp proofing

J40/35 Loose laid plastics or rubber gas retardant damp proofing

Specification data - Plastics sheets

Product Reference

RIW Structureseal GPT

Standard product features

Form:

Loose laid sheet of blended polyethylene with a bonded geotextile.

Colour:

Grey.

Overall thickness:

1.5 mm.

Roll size (w x l):

1.9 x 25 m.

Technical characteristics:

  • Weight: 33 kg per roll.
  • Adjacent laps (welded or taped): 100 mm wide (onto selvedge).
  • Tensile strength (to EN 12310-1): Machine direction (MD): >550 N/50mm; Cross machine direction (CD): >400 N/50mm.
  • Resistance to tearing (to EN 12310-1): Machine direction (MD): 300 N; Cross machine direction (CD): 400 N.
  • Water vapour transmission rate (to BS EN 1931): 0.14 g/m²/day.
  • Radon permeability (SP Method 3873): 3 x 10-12m².s.
  • Methane gas permeability (to BS EN ISO 15105-1): 0.13 ml/m²/day/atm.
  • Carbon dioxide permeability (to BS EN ISO 15105-1): 3.01 ml/m²/day/atm.

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