Reduce the effect of wind loading on your roof with this non-breathable membrane. It helps to keep spaces quiet in high winds and protect interiors from water leaks should tiles become loose or damaged. Use it on pitched roofs when you're constructing houses, offices and outbuildings.
This membrane is highly flexible, lightweight and easy to cut, making positioning and trimming it simple. It doesn't tear easily, so when you nail it into place it will remain watertight around the puncture mark. It's also extremely strong and waterproof overall, which keeps harsh weather locked out.
The product is resistant to UV light and extremes of heat, meaning you can use it on south-facing exposures without issues. It has a dark grey surface that reduces glare and it won't flap about under the tiles in gusty winds, therefore minimising unwanted noise.
• A waterproof roof tile underlay
• Used for pitched roof applications
• Gives major benefits over traditional bitumen felt
• Supplied in a 45 m roll

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.