Suitable for floating installation only, such as laminate and wood flooring. Creates barrier to prevent rising damp due to built-in vapour membrane. Levels uneven surfaces and provides sound insulation. Suitable for Laminate & Wood Flooring Mould & Mildew-Resistant Compatible with Underfloor Heating 19dB Impact Sound Insulation Levels Uneven Floors up to 2.6mm High Traffic Area CC 25Kpa. Built-In Vapour Membrane Suitable for Laminate & Wood Flooring Mould & Mildew-Resistant Compatible with Underfloor Heating 19dB Impact Sound Insulation Levels Uneven Floors up to 2.6mm High Traffic Area CC 25Kpa. Built-In Vapour Membrane