View basket “6-10mm Stone Half Bulk Bag” has been added to your basket. £53.40 4m X 25m DPM, 300mu quantity Add to basket Category: Building Materials Description Description Damp-proof membrane (DPM) is a versatile product and can also be used for a wide range of applications; but commonly used to protect a building’s concrete slab from moisture rising from the foundations. Related products 20mm Ballast Mini Bag £3.50 Add to basket Bond-It Contractors PVA £6.53 – £11.86 Select options 20mm Ballast Bulk Bag £42.00 Add to basket 50mm PIR Insulation Board £40.00 Add to basket