Looking for a practical and cost-effective way to damp proof your loft conversion or basement refit using butyl tape? Try this double-sided one from Damplas. 
The tape uses a high-quality adhesive that bonds firmly to damp-proof materials or membranes. This means you can count on it to stick in areas with high amounts of moisture in the air, such as bathrooms, attics or basements.
There's also no chance of moisture seeping through your walls or floor and causing damage, as the butyl material is totally damp proof. It's supplied on a roll, so it's easy to use too. All you need to do is overlap your membrane material by a minimum of 150 mm and then apply the tape in between the two layers. Once you're done, apply a length of Damplas single-sided jointing tape to seal up the overlap.
• A high performance butyl mastic tape
• Used for joining damp proof and DPM
• Adhesive on both sides
• Methane gas resistant (tested to ISO15015-1, achieves 0.07 ml/ linear metre/day)
• BBA-approved

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.