View basket “20mm Ballast Mini Bag” has been added to your basket. £12.60 300mm X 30m DPC quantity Add to basket Categories: Bricks & Blocks, Building Materials Description Description Damp-proof course (DPC) offers a protective barrier; and is used within the inner layers of brick or block walls to protect buildings from rising damp. Related products 20mm Stone Mini Bag £3.50 Read more 100mm 3.6N GP Concrete Block £2.75 Add to basket Line Marker Spray – 750ml £7.99 Select options 50mm Block Paving – Brindle £0.54 Add to basket