View basket “20mm Ballast Half Bulk Bag” has been added to your basket. £20.00 4m X 6m DPM Handipack, 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 Grano Dust Mini Bag £3.90 Add to basket 4m X 25m DPM, 300mu £53.40 Add to basket 6-10mm Stone Half Bulk Bag £30.00 Add to basket 20mm Stone Bulk Bag £48.00 Add to basket