Damp Proofing & Membranes delivered across Gwynedd

Which damp proofing can you order in Gwynedd?

• 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.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Radon barriersGas-resistant membranes for areas that need radon protection.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.

Damp Proofing & Membranes delivered in Gwynedd towns

• Damp Proofing & Membranes in Bangor (Gwynedd)
• Damp Proofing & Membranes in Holyhead
• Damp Proofing & Membranes in Caernarfon

Estimating your damp proofing

An extension in Gwynedd with 36 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.

Getting damp proofing onto your Gwynedd site

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Our standard mainland delivery area covers Gwynedd.

• On busy streets in Gwynedd, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.
• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• Tell us the best drop point, such as a driveway, front garden or the kerb, and whether a lorry can park close to it.

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.

Damp Proofing & Membranes in Gwynedd: questions

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.

Can I add other materials to my Gwynedd 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.

Do you deliver damp proofing to Gwynedd?

Yes. We deliver across Gwynedd, including LL. Our standard mainland delivery area covers Gwynedd. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.