Order damp proofing for delivery in Aston

Choosing from our damp proofing range

• Cavity trays and stop endsTo direct water out of the cavity over openings.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.

Things to check before you order

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.

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 Aston delivery arrives

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

• On busy streets in Aston, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
• In summer Aston gets around 16h 50m of daylight, but early deliveries still beat the traffic and give the longest working day.
• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.

Sizing your order

An extension in Aston 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.

Damp Proofing & Membranes questions

What is the difference between DPC and DPM?

DPC is a strip built into walls to stop damp rising through the masonry. DPM is a sheet laid under a concrete floor slab. They are lapped together so there is no gap.

How soon can damp proofing be delivered in Aston?

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.

Can I add other materials to my Aston delivery?

Yes. Put everything on one list, from damp proofing to fixings and PPE, and we will price it as one delivery where the products can travel together.

Where does the DPC go?

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