Visqueen High Performance DPM - BBA Approved - is Visqueen's premium grade Damp Proof Membrane maunfactured from prime virgin polymers for use as a Type “A” damp proof membrane as defined by BS EN 13967: 2004. The DPM is yellow in colour and available centre folded in 4m x 12.5m x 500um roll format. The 500μm membrane is manufactured as a centre folded product to limit creases which aids jointing and welding applications on site. Centre Folded films can also help to reduce cracks found in structural concrete screeds where traditional multi-folded DPMs are used.