Damp Proofing & Membranes delivery in Bentley

Our damp proofing range for Bentley jobs

• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• Cavity trays and stop endsTo direct water out of the cavity over openings.
• Weep ventsFor drainage and ventilation at the base of cavities and over trays.
• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.

Choosing damp proofing

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.

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 Bentley

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

• Weight limits on bridges or private roads near the site matter for larger lorries, so mention any you know of.
• If the site is up a shared drive or behind other houses, tell us the distance from the road.
• If the drop point is block paving or soft ground, say so; heavy pallets and bulk bags can mark or sink.

Working out quantities for your Bentley job

An extension in Bentley 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

Do you deliver damp proofing to trades and homeowners in Bentley?

Both. Trades can apply for a trade account; homeowners and self-builders can order on a delivered quote.

Do you supply cavity trays?

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

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.

Can I add other materials to my Bentley 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.