Damp Proofing & Membranes delivery in Portslade

Choosing from our damp proofing range

• 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.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.

Damp Proofing & Membranes: choosing well

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.

Laps and joints

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

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.

Sizing your order

An extension in Portslade with 12 m of cavity wall needs DPC in both leaves: about 1 roll 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.

How delivery works in Portslade

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Portslade 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.
• With roughly 7h 56m of daylight in Portslade around the shortest day, morning deliveries leave more working light for the job.
• Have someone on site for the delivery if you can, or agree a safe drop point with us in advance.

Your questions answered

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.

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

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

Where does the DPC go?

Usually at least 150 mm above outside ground level, linked to the floor DPM.

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

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.