Damp Proofing & Membranes delivery in Seaham

Choosing from our damp proofing range

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

Delivery to Seaham: what helps

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

• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.

Damp Proofing & Membranes: choosing well

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.

A quick quantity check

An extension in Seaham with 32 m of cavity wall needs DPC in both leaves: about 3 rolls in 30 m lengths once laps are allowed for. A 25 m² floor slab needs about 28.7 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Damp Proofing & Membranes questions

Do you deliver damp proofing to Seaham?

Yes. We deliver across Seaham, including SR7, SR8, DH6. Seaham 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.

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

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

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.