Damp Proofing & Membranes for Ashington, delivered to site

Which damp proofing can you order in Ashington?

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

Sizing your order

An extension in Ashington with 24 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 20 m² floor slab needs about 23 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Delivery to Ashington: what helps

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

• On busy streets in Ashington, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.

Damp Proofing & Membranes: choosing well

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 questions

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

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

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.

Can I add other materials to my Ashington 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.