Damp Proofing & Membranes for Willenhall, delivered to site

Damp Proofing & Membranes available for Willenhall delivery

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

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.

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.

Quantities: a worked example

An extension in Willenhall with 28 m of cavity wall needs DPC in both leaves: about 3 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.

Delivering damp proofing in Willenhall

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

• Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
• If neighbours share the access, it helps to let them know a lorry is coming.
• With roughly 7h 38m of daylight in Willenhall around the shortest day, morning deliveries leave more working light for the job.

Damp Proofing & Membranes questions

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

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

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

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.

How thick should a DPM be?

1200-gauge polythene, around 300 microns, is a common specification for floor slabs. Your design may call for something different.

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.