Suitable for floating installation only, such as laminate and wood flooring. Creates barrier to prevent rising damp due to built-in membrane. Levels uneven surfaces and provides sound insulation. Suitable for Laminate & Wood Flooring Mould & Mildew-Resistant Compatible with Underfloor Heating 22dB Impact Sound Insulation Levels Uneven Floors up to 4.6mm High Traffic Area CC 25Kpa. Built-In Vapour Membrane Thermo Insulation Suitable for Laminate & Wood Flooring Mould & Mildew-Resistant Compatible with Underfloor Heating 22dB Impact Sound Insulation Levels Uneven Floors up to 4.6mm High Traffic Area CC 25Kpa. Built-In Vapour Membrane Thermo Insulation