DPC Damp Proof Course – 225mm x 30m

Bond It DPC Damp Proof Course 225mm x 30m is a professional-grade, 450gsm embossed polythene damp-proof course membrane designed to prevent rising damp in domestic masonry construction. Manufactured from high-quality reprocessed materials, it delivers a durable, cost-effective moisture barrier for builders, groundworkers, and DIY renovators working on new-builds, extensions, and repair projects.

Key Features and Specifications

• Width: 225mm (9 inch) — suitable for standard two-brick cavity walls
• Length: 30 metres per roll — covers 6.75 m²
• Material: High-quality reprocessed polythene, 450gsm
• Colour: Black
• Surface: Embossed finish to improve mortar adhesion
• Flexibility: Remains workable and flexible even at low temperatures
• Shelf life: Indefinite — chemically stable, inert, and solvent-free
• Certification: CE Approved — conforms to EN14909; UKCA Approved
• Installation standard: CP102:1973 and BS 5628
• Lap requirement: Minimum 100mm overlap when joining two lengths

Applications

• Horizontal DPC installation beneath brick and block courses to stop rising damp
• Vertical DPC in cavity walls and around openings
• Base of internal load-bearing walls, linked with adjoining damp-proof membranes (DPM)
• New-build domestic construction — houses, bungalows, and low-rise residential
• Extensions, porches, and outbuildings requiring a compliant damp-proof course
• Repair and remedial work where existing DPC has failed or is absent

Why Choose This Product

Bond It is a trusted UK manufacturer with a long track record in construction chemicals and membranes. This DPC roll is CE-marked to EN14909 and UKCA-approved, giving specifiers and site managers the compliance confidence they need. The embossed surface locks into mortar beds for a secure, lasting installation, while the flexible polythene formulation performs reliably year-round — including cold-weather pours. Supplied in a practical 30m roll, it suits both single-trade jobs and bulk trade orders.

Delivery in and Around London

We deliver the Bond It DPC Damp Proof Course 225mm x 30m to inner London boroughs including Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas such as Enfield, Bexley, Redbridge, and Barnet. We also supply to the surrounding counties of Kent, Essex, Surrey, and Hertfordshire. Trade quantities and multi-roll orders are welcome — contact us for volume pricing. Order online for prompt despatch, typically within 1–3 working days.