Damp Proofing & Membranes delivery in Portsmouth

Damp Proofing & Membranes available for Portsmouth delivery

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

A quick quantity check

An extension in Portsmouth with 36 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.

Before you order damp proofing

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.

How delivery works in Portsmouth

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Portsmouth 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.
• Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Damp Proofing & Membranes questions

Can I add other materials to my Portsmouth 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 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 supply cavity trays?

Yes, with stop ends and weep vents for openings and abutments.

Is there a minimum order for delivery to Portsmouth?

There is no fixed minimum. For very small orders we will tell you honestly if the delivery cost outweighs the materials, so you can decide.