Order damp proofing for delivery in Norwich

Which damp proofing can you order in Norwich?

• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• 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.
• Radon barriersGas-resistant membranes for areas that need radon protection.

Before you order damp proofing

Laps and joints

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

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.

Delivering damp proofing in Norwich

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

• Deliveries are to the kerb, drive or within crane reach; ask if materials need to go further.
• For a phased build we can split the order so materials arrive as each stage starts, which keeps the site clear.
• On busy streets in Norwich, a parking suspension or a quiet time slot can make offloading safer, so tell us about local restrictions you know of.

Sizing your order

An extension in Norwich with 32 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.

Damp Proofing & Membranes questions

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

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.

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 Norwich?

Yes. We deliver across Norwich, including NR2, NR3, NR1, NR14. Norwich is inside our standard mainland delivery area. Send your list or call 0800 088 6341 and we will price it delivered to your postcode.

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.