BBA certified, 3mm Cavity Drain Membrane for Basements – Suitable for use internally below the ground to retaining walls, vaulted soffits and floors.
Newton 503 is a high quality cavity drain waterproofing and damp proofing membrane suitable for use internally above or below the ground to retaining walls, vaulted soffits and floors.
Newton 503 can be used within our Newton System 500 waterproofing system that includes Newton drainage and pumping systems. Please see the Newton Installation Manual for details on fixing and finishing of the product. Newton 503 holds BBA certification (94/3010).