Damp Course & Membrane

Damp Proof Courses & Membranes for Moisture Protection

Our range of damp proof course (DPC) rolls and membranes helps protect walls, floors, and foundations from rising damp and moisture ingress. Suitable for new builds and refurbishments, these barriers are essential for complying with UK building regulations and maintaining structural integrity.

We stock a variety of DPCs, polythene membranes, and accessories in standard widths and heavy-duty gauges. For more site essentials, explore our Damp Proofing, Cement & Aggregates, and Concrete Reinforcement ranges.

Frequently Asked Questions – Damp Course & Membranes

What is a damp proof course (DPC)?
A DPC is a physical barrier, usually a plastic strip, installed in walls to stop moisture rising from the ground into brickwork or blockwork. It is typically fitted above the foundation level.

When should a damp proof membrane be used?
Damp proof membranes are laid beneath concrete floors to prevent ground moisture from entering interior spaces. They’re often used in conjunction with a DPC for full protection.

Are your DPC rolls suitable for all wall types?
Yes — our DPC rolls are compatible with cavity walls, solid walls, and timber frame construction. Always ensure the correct width and gauge are chosen for the application.

Can damp membranes be joined for large areas?
Yes — membranes can be overlapped and sealed with DPM tape to create a continuous barrier. Always follow manufacturer guidelines to ensure watertightness.

Do your products meet UK building standards?
Yes — all our damp proofing products meet relevant British Standards for residential and commercial construction. Product specs and data sheets are available upon request.