RIW LAC

RIW LAC® (Liquid Asphaltic Composition) is a cold-applied bitumen-based waterproofing and radon barrier coating with a track record of nearly a century in the construction industry. Formulated as a solution of natural and petroleum bitumens in white spirit, it dries to a uniform gloss black finish and can be applied quickly and easily by brush, roller or spray.

Designed primarily for use on structures below ground level, LAC® is ideal for external and internal tanking, retaining walls and ground floor damp proof membranes. It can also be used on superstructures as a vapour barrier behind cladding systems and plaster finishes.

When correctly applied, LAC® meets the performance requirements for Grade 1, 2 and 3 basement protection under Type A structures as classified in BS8102:2009. It also provides an effective barrier against radon gas and is sulphate resistant, making it well suited to challenging ground conditions.

Benefits

• Quick & easy to apply using a brush, roller or spray
• Effective barrier to radon gas
• Sulphate resistant
• Suitable for internal and external tanking
• Ideal for retaining walls.
• Ideal ground floor DPM
• Acts as a water and water vapour barrier
• Elastic and flexible

Good to know

• Can be applied to concrete masonry & steel
• It is also suitable for waterproofing, foundation walls, ducts, lintels, columns, beams and similar structures at, above and below ground level
• Will not crack or peel provided it is protected from mechanical damage and exposure to U.V
• J30 - Liquid Applied Tanking/Damp Proofing in accordance with NBS Clauses
• BBA certified for the tanking of basements and as a damp proof membrane for solid floors.