Damp Proofing & Membranes for Darwen, delivered to site

Damp Proofing & Membranes we supply in Darwen

• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.

Getting damp proofing onto your Darwen site

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Darwen is inside our standard mainland delivery area.

• Give us the full postcode for the drop point; deliveries around BB3 are priced to the exact address.
• In summer Darwen gets around 17h 05m of daylight, but early deliveries still beat the traffic and give the longest working day.
• On busy streets in Darwen, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.

Choosing damp proofing

Laps and joints

DPM and DPC need generous laps and sealed joints; follow the manufacturer's guidance.

DPC width

Match the DPC width to the wall leaf so it runs the full width of the masonry.

In England, building work is checked against the Approved Documents, for example Part A for structure and Part L for energy efficiency, through your council's building control team or a registered building control approver.

Estimating your damp proofing

An extension in Darwen with 36 m of cavity wall needs DPC in both leaves: about 3 rolls in 30 m lengths once laps are allowed for. A 20 m² floor slab needs about 23 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Damp Proofing & Membranes in Darwen: questions

Is there a minimum order for delivery to Darwen?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.

Do I need a radon barrier?

It depends on where you are. In radon-affected areas building control requires radon protection in new buildings and extensions.

How soon can damp proofing be delivered in Darwen?

We confirm the delivery date when we price your order, before you commit. It depends on the product, the quantity and whether it is a stock line or made to order.

Where does the DPC go?

Usually at least 150 mm above outside ground level, linked to the floor DPM.