NBS Source
List your products

This product is no longer available

RIW Sheetseal GR

RIW Sheetseal GR


A self-adhesive damp proofing, waterproofing and gas retardant membrane. The product provides Type A (barrier) protection in accordance with BS 8102: 2009, and is compliant with BS8485: 2015.

Jump to:
+44 (0)1344 397777 www.riw.co.uk

RIW Sheetseal GR is a cold applied, high density polyethylene film bonded to aluminium foil and coated with a bitumen/ rubber self-adhesive layer with a removable reinforced silicone release paper. Typically used to reduce the passage of methane and carbon dioxide gasses on contaminated sites. The membrane must always be covered.

Joint laps:

Side and end laps minimum 150 mm are recommended.

General information
Uniclass 2015
Pr_25_57_08_08 Bitumen sheetsPrimary

J40/180 Self-adhesive bitumen gas retardant damp proofing/ tanking

J40/45 Self-adhesive bitumen gas retardant damp proofing/ tanking

Specification data - Bitumen sheets
Product Reference

RIW Sheetseal GR


Not required

RIW Sheetseal Primer

Used on all vertical or inclined substrates.

Standard product features


1.5 mm.

Water vapour transmission:

< 0.1 g/m²/24hr.

Methane gas permeability:

< 0.3 ml/m²/24hr.

Product Options


RIW Sheetseal primer is a bitumen solution.

Similar products from RIW