Polythene Damp Proof Course (DPC) is a high-quality, flexible membrane designed to prevent the upward passage of moisture through masonry walls. Manufactured from robust, recycled black polyethylene, it provides a reliable and cost-effective barrier against rising damp. The material is engineered with a textured surface to enhance the mechanical bond with mortar, ensuring structural stability while maintaining a watertight seal. Its flexibility allows it to be easily worked around corners and architectural details, making it an essential component for both new build residential projects and remedial construction work. Benefits Provides an effective and durable barrier against rising damp in masonry walls Textured surface ensures a high-strength bond with mortar for improved wall stability Highly flexible and easy to handle, even in low-temperature conditions Manufactured from recycled polythene for an environmentally responsible building solution Chemically inert and resistant to the salts and acids typically found in soil and groundwater Good to know Available in standard lengths of 30 metres Widths range from 100mm to 900mm to suit all standard brick, block, and stone wall thicknesses The material is 500 microns (0.5mm) thick, meeting standard industry requirements for domestic housing It is fully compliant with BS 6515 (the British Standard for polyethylene DPCs) For optimal performance, it should be installed on a fresh bed of mortar and overlapped by at least 100mm at joints Suitable for use in both internal and external walls, as well as around door and window reveals
