Order damp proofing for delivery in Amersham

Which damp proofing can you order in Amersham?

• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• 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.

Delivery to Amersham: what helps

Rolls are light enough to travel with a mixed load and are handed off at the kerb. Amersham 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.
• With roughly 7h 48m of daylight in Amersham around the shortest day, morning deliveries leave more working light for the job.
• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.

Getting the right 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.

Quantities: a worked example

An extension in Amersham with 20 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 40 m² floor slab needs about 46 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Common questions from Amersham

Can I add other materials to my Amersham 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.

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.

Is there a minimum order for delivery to Amersham?

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.

Where does the DPC go?

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