This product is no longer available —
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.
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.
Side and end laps minimum 150 mm are recommended.
J40/180 Self-adhesive bitumen gas retardant damp proofing/ tanking
J40/45 Self-adhesive bitumen gas retardant damp proofing/ tanking
RIW Sheetseal GR
RIW Sheetseal Primer
Used on all vertical or inclined substrates.
|Standard product features|
Water vapour transmission:
< 0.1 g/m²/24hr.
Methane gas permeability:
< 0.3 ml/m²/24hr.
RIW Sheetseal primer is a bitumen solution.