Larsen Waterproof Anti-Crack Membrane | Waterproof Decoupling Membrane for Tiles

Larsen Waterproof Anti-Crack Membrane is an advanced low-profile waterproofing and decoupling membrane designed to protect tiled floor installations from substrate movement, cracking and moisture migration. Manufactured as an innovative 3-ply membrane system, it provides both waterproofing and stress-relief performance in a single product, making it ideal for demanding residential and commercial tiling projects.

The membrane is specifically engineered to accommodate lateral movement within substrates, helping to prevent stresses and cracks from transferring through to the finished tiled surface. It is particularly suitable for installations over timber floors, heated screeds, underfloor heating systems, cracked substrates, natural stone tiles and large format porcelain tiles.

Its low-profile design minimises floor build-up while delivering reliable waterproofing protection and effective decoupling performance. The fast-track installation system allows tilers and flooring professionals to prepare surfaces quickly and efficiently, reducing project times without compromising durability.

Suitable for wet rooms, bathrooms, kitchens, commercial developments and refurbishment projects, Larsen Waterproof Anti-Crack Membrane provides long-lasting protection for tiled floor installations exposed to movement, moisture and thermal expansion.

Key Features

• Waterproof and decoupling membrane in one product
• Innovative 3-ply construction
• Accommodates lateral substrate movement
• Helps prevent tile cracking
• Protects against moisture migration
• Low-profile design with minimal height build-up
• Easy and fast to install
• Suitable for commercial and domestic applications
• Ideal for underfloor heating systems
• Suitable for demanding floor tiling installations