Decoupling Membranes - Designed to prevent newly laid tile floors from cracking or lifting if the substrate beneath them moves or cracks in any way due to natural or environmental causes.
Decoupling Membranes are often used in newly built dwellings as the foundation structure moves slightly as it settles into the ground – the membrane acts as a decoupling layer to absorb the lateral movements, and so prevent the tiled floor from cracking and breaking up.