Damp proof course made from 100% recycled polythene, conforms to BS 6515 (1984) and is CE marked to EN14909 2012. For use in brick, stone and concrete walls, DPC provides a robust damp proof barrier to prevent the rise of damp in structure walls. To be compliant with current building regulations a damp proof course should be built into the mortar bed approximately 150mm above the structure base.