Damp Proofing & Membranes delivered to Coulsdon

Damp Proofing & Membranes we supply in Coulsdon

• Cavity trays and stop endsTo direct water out of the cavity over openings.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.

Things to check before you order

DPC width

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

Laps and joints

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

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.

Before your Coulsdon delivery arrives

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

• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.
• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.

Working out quantities for your Coulsdon job

An extension in Coulsdon 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 questions

How soon can damp proofing be delivered in Coulsdon?

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.

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.

Where does the DPC go?

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

Do you deliver damp proofing to Coulsdon?

Yes. We deliver across Coulsdon, including CR5, CR8, SM6, CR2. Coulsdon is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.