RIW Gas Seal Black - Gas resistant membrane

RIW Gas Seal Black is a four-layer, low density polyethylene membrane reinforcing grid with an integral aluminium foil, typically used as a low density, polyethylene gas barrier and damp proof membrane in concrete floors above and below the slab.

Features/ Benefits:

• Manufactured from virgin material, not recycled waste.

• Separate damp proof membrane not required.

• Robust jointing and sealing system.

• Welded joints possible.

• Single wound membrane with zero creases.

• Two colour membrane for on-site quality control.

• Suitable for use where radon, carbon dioxide, methane and hydrocarbon vapours are present.

• Complies with latest codes of practice as published by CIRIA and BRE.

• CE marked.

Applications:

Combined ground floor damp proof membrane and gas barrier.

Accessories:

A range of accessories are available (specified separately):

• RIW Gas Seal GR DPC: Gas resistant damp proof course/ cavity tray, 450, 600 or 900 mm wide.

• RIW Gas Seal Pipe Collar: Pre-fabricated ‘top-hats' for sealing around pipe penetrations. Available in 100, 130 and 160 mm diameters.

• RIW Gas Seal Tape: Double-sided self-adhesive butyl tape, 50 mm wide, for sealing between overlaps in the membrane.

• RIW Lap Tape: Single-sided self-adhesive PVC tape, 100 mm wide, for sealing edges of lapped product.

• RIW Lap Tape RB: Self-adhesive polymer/ bitumen compound with polypropylene woven mesh, 75 mm wide, for sealing edges of lapped product.

• RIW Pre-Formed Gas Cloaks: Pre-fabricated units for internal/ external corners and door reveals.