This 3mm Moisture Lock Underlay is designed for use with wood and laminate flooring. It features an integral vapor barrier with a 200mm joint overlap to seal underlay joins when using with Vapor Tape. It also features an integrated Damp Proof Membrane (DPM) which helps to stop moisture from rising from your subfloor to your flooring, essentially protecting your floor from damage. It is super lightweight, making it easy to handle and install. This underlay is also 100% recyclable, making it the great option for those seeking an eco friendly home update.