Stop moisture seeping into your floors with this Damplas damp-proof membrane. It's a durable barrier material that's laid down before you pour a concrete floor to prevent porous cement from absorbing groundwater. Builders use damp-proofing like this in almost every masonry structure to help keep houses dry and floors free from mould.  
The membrane is easy to lay and needs no special skills, so don't worry if you're not a professional builder. It's supplied as a single sheet, which gives you the option to use it as a whole or cut to size. This product is made of 100% recycled polythene, so it has a light carbon footprint. It also holds the BBA stamp of approval, which gives it superior standing in the building industry. If you want to join sheets together, you'll need Damplas joining tape for a water-tight seal.
• 3 m x 4 m damp-proof black membrane
• 250mu = 1000g
• Supplied as a single sheet but can easily be cut to size
• Stops ingress of moisture to protect floors
• Easy to lay
• BBA-certified

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.