Damp Proofing & Membranes delivery in Radcliffe

What damp proofing can we deliver to Radcliffe?

• Cavity trays and stop endsTo direct water out of the cavity over openings.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.

Quantities: a worked example

An extension in Radcliffe with 20 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 50 m² floor slab needs about 57.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Getting damp proofing onto your Radcliffe site

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

• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Picking the right product

Laps and joints

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

DPC width

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

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 Radcliffe: 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 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.

Can I add other materials to my Radcliffe 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.

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

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