Damp Proofing & Membranes delivery in Grays

Damp Proofing & Membranes available for Grays delivery

• DPC rollsPolymer and bitumen damp-proof course in standard wall widths.
• DPM sheetingHeavy-gauge polythene membrane under concrete floors.
• Liquid DPM and tankingCoatings for screeds and below-ground walls.
• 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.

How delivery works in Grays

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

• Pallets left on a pavement can block the footway, so plan a drop point inside your boundary where you can.
• Give us the full postcode for the drop point; deliveries around RM17 are priced to the exact address.
• Clear a level area for pallets, ideally on boards, so materials stay out of standing water.

Getting the right 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.

Laps and joints

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

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 Grays with 20 m of cavity wall needs DPC in both leaves: about 2 rolls in 30 m lengths once laps are allowed for. A 30 m² floor slab needs about 34.5 m² of DPM including laps, which is 1 roll of 4 × 25 m sheeting.

Your questions answered

Is there a minimum order for delivery to Grays?

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.

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

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 you supply cavity trays?

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