Decoupling Membrane Matting is a premium underlayment designed to prevent tile cracks caused by substrate movement, shrinkage, or expansion. Its engineered studded structure absorbs lateral stresses between the subfloor and the tile, protecting the finished surface from cracking or delamination.
Made from high-quality polypropylene with a double fleece backing, this matting is suitable for use over concrete, screed, timber, and mixed substrates. It provides excellent compatibility with underfloor heating systems and can also offer waterproofing protection when used with sealing tapes at the joints.
Lightweight, easy to cut, and quick to install, this membrane is ideal for both professional installers and DIY applications. It offers enhanced durability, improved adhesion, and exceptional mechanical performance for long-lasting tiled floors.
Key Features
Prevents tile cracks from substrate movement
Lightweight and easy to handle
Suitable for use over mixed or problem substrates
Provides waterproofing when used with sealing tapes at joints
Compatible with underfloor heating systems
Double fleece backing for superior adhesive grip
Suitable for wet rooms, kitchens, and bathrooms
Tested for Extra Heavy loads — ideal for retail, office, industrial, and public spaces
Applications
Domestic and commercial floor tiling
Over concrete, screed, timber, or mixed substrates
With underfloor heating systems
Wet rooms, kitchens, bathrooms
Areas with potential movement or moisture
Outdoor tiled terraces and balconies
Renovation projects over existing floor finishes
High-traffic areas requiring enhanced durability
Technical Specifications
Specification
Details
Material
Polypropylene with double-sided fleece backing
Roll Size
1m × 30m
Thickness
~3–4 mm
Temperature Resistance
–40°C to +80°C
Water Tightness (EN 1928)
Pass – 2 kPa pressure
Resistance to Ageing & Chemicals
Pass
Tear Resistance (EN 12310-1)
Pass – > MLV
Joint Strength (EN 12317-2)
Pass – > MLV
Static Load Resistance (EN 12730)
Pass – > MLV
Reaction to Fire (EN 13501-1)
Class A1
Load Classification
Extra Heavy – ASTM C627 (TCNA tested)
CE Certified
Yes
Installation Instructions
Ensure the substrate is clean, dry, and level.
Apply a cement-based adhesive using a 4–6mm notched trowel.
Lay the membrane bumpy side down into the adhesive and press firmly to remove air pockets.
Butt sheets together and seal joints with waterproof tape if a waterproof installation is required.
Tile directly onto the dimpled surface — the adhesive will fill the cavities, creating a strong mechanical and chemical bond.
