Damp Proofing & Membranes delivery in Barnes

Damp Proofing & Membranes we supply in Barnes

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

Quantities: a worked example

An extension in Barnes with 36 m of cavity wall needs DPC in both leaves: about 3 rolls in 30 m lengths once laps are allowed for. A 40 m² floor slab needs about 46 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Before you order damp proofing

DPC width

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

Is radon protection needed?

Parts of the UK need radon protection in new buildings and extensions. UKHSA radon maps show the areas; building control will tell you what applies.

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.

Delivery to Barnes: what helps

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

• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.

Questions about damp proofing delivery in Barnes

Do you deliver damp proofing to trades and homeowners in Barnes?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

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.

Do you supply cavity trays?

Yes, with stop ends and weep vents for openings and abutments.

How soon can damp proofing be delivered in Barnes?

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.