Damp Proofing

About Our Damp Proofing Range

Moisture ingress and rising damp can compromise structure, appearance and insulation performance – so a robust damp proof course (DPC) or damp proof membrane (DPM) is essential. At Burnt Oak Timber you’ll find a carefully selected range of products such as polyethylene DPC rolls, high performance bituminous DPC and thick gauge DPM sheeting – all stocked under our Damp Proofing category.

Our damp proofing harrow-oriented offering is tailored to local needs: from ground-floor walls and base courses to concrete slabs and refurbishments, we supply materials trusted by builders in the Harrow region.

Choosing the Right Damp Proof Course or Membrane

Selecting the correct type of protection depends on the build environment. For new masonry walls or blockwork, you’ll typically install a damp proof course at the base of the wall—this forms a physical barrier to rising moisture. Look out for rolls or sheets marked as DPC. On the Burnt Oak Timber site you’ll find popular options such as the “Visqueen Polyethylene Damp Proof Course (DPC)”.

In cases where you’re working with ground-bearing slabs, conversion of basements or retrofits, you’ll need a damp proof membrane. This sheet material is laid under concrete, behind walls or across the slab to stop water vapour or moisture penetrating the structure – that is the “damp proof membrane for walls” product type.

Other considerations: the thickness and gauge of the sheet, whether it’s compatible with insulation, whether it’s puncture-resistant, and local ground conditions (e.g., high water table, coastal location). If you are in Harrow and need advice, our team can help you pick the right specification.

Why Buy from Burnt Oak Timber

With over ten years’ experience serving the Harrow region and beyond, Burnt Oak Timber knows what local builders, trades and DIYers require when tackling moisture issues. The Damp Proofing collection is conveniently integrated in our Builders Merchants site and includes real-trade brands for reliability.

We offer quick delivery, competitive pricing, and stock that’s traded specifically for damp proofing needs – not just general purpose sheet materials. Our “free delivery on orders over £350” means you can get site-ready protection without hassle. Choosing Burnt Oak Timber means you’re working with a supplier that understands building materials and moisture control in UK conditions.

How to Use the Damp Proofing Products

1. New Builds: Install a layer of DPC at the base of all external walls (generally above ground level) to prevent rising damp.
2. Refurbishments: For older properties where damp is visible, you may need to either upgrade the DPC or install a damp proof membrane as a retrofit.
3. Floors & Basements: Use DPM sheets beneath new concrete slabs or as a wall-lining underfloor finishing to stop moisture migration.
4. Wall Applications: When insulating or dry-lining walls, a DPM behind the lining can double as your vapour barrier and moisture stop.

Follow manufacturer instructions for rewiring joints, overlaps (usually 100 mm plus) and ventilation. When in doubt, ask our Harrow branch team to recommend appropriate lap excess, minimum thickness or compatible insulation products.