Damp Proofing & Membranes delivered to Penarth

Which damp proofing can you order in Penarth?

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

Estimating your damp proofing

An extension in Penarth with 28 m of cavity wall needs DPC in both leaves: about 3 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.

Picking the right product

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.

DPC width

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

Wales has its own Approved Documents, including its own Part L for energy efficiency, and building control is handled by the local authority or a registered approver.

Getting damp proofing onto your Penarth site

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

• If neighbours share the access, it helps to let them know a lorry is coming.
• Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
• Keep cement, plaster and boards dry: have a tarpaulin or a garage space ready before they arrive.

Questions about damp proofing delivery in Penarth

Is there a minimum order for delivery to Penarth?

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.

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

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

Where does the DPC go?

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