Damp Proofing & Membranes for Winchester, delivered to site

Our damp proofing range for Winchester jobs

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

Quantities: a worked example

An extension in Winchester with 20 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 30 m² floor slab needs about 34.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Before your Winchester delivery arrives

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

• If neighbours share the access, it helps to let them know a lorry is coming.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.
• In summer Winchester gets around 16h 33m of daylight, but early deliveries still beat the traffic and give the longest working day.

Before you order damp proofing

Laps and joints

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

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.

Damp Proofing & Membranes in Winchester: questions

Do you deliver damp proofing to Winchester?

Yes. We deliver across Winchester, including SO23, SO21, SO25, SO22. Winchester is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

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.

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.

Can you deliver damp proofing to a site with restricted access in Winchester?

Usually, yes. Tell us about the access when you ask for a price and we will plan the vehicle and offload, or say if a smaller vehicle is needed.