Sark-IT Non Breathable Membrane 1 x 45m

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 may take a little longer over the bank holiday period. Check our Early May bank holiday delivery times for details.

 

DELIVERY OPTIONS (UK mainland only)

 

Next Day Delivery – £5.00 or FREE for orders over £40

• Order before 9pm Monday to Thursday for next business day delivery
• Order Friday to Sunday before 5pm for Monday delivery
• Orders placed after Sunday at 5pm will be delivered the following Tuesday

 

Pre-12pm Delivery – £10.00 to arrive before 12pm on the scheduled days above

Saturday Delivery – £10.00 or £5.00 for orders over £40 & FREE for orders over £75 (order by 6pm Friday)

Sunday Delivery – £10.00 or £5.00 for orders over £40 & FREE for orders over £75 (order by 4pm Saturday)
Times may vary for items being delivered directly from the supplier. For more information, please visit our delivery information page below.

Items over 30kg can only be delivered from Monday to Friday. If ordered before 6pm, please allow up to two business days for delivery. Orders placed after 6pm Thursday will be delivered after the weekend.

 

Supplier Delivery - Lead times for products delivered directly by our suppliers are shown on the product pages, and are always advertised in working days (Monday to Friday).

 

More about delivery

Store opening hours may differ over the bank holiday period. Check our Early May bank holiday opening hours for details.

 

Our standard opening times are 7am-8pm Monday-Friday, 7am-6pm Saturday and 9-4pm Sunday. Please check your local store is open on the store locator page, before you visit.

 

Once you have placed your order online, we’ll have it ready for you at the store you have selected in as little as 5 minutes. We will hold your order for 14 days, after which we will automatically generate a refund to the payment type you used to place the order.

 

Don’t forget your mobile number – Make sure your mobile number is added so that we can text you when your order is ready to collect. Please wait for your text or email before coming to collect your items.

 

If an item is eligible for Next Business Day Collection in store, the order must be placed by 9pm Monday to Thursday for collection the next day. Orders placed after 9pm on Thursday, and up to 5pm on Sunday, will be available for collection on Monday. For larger items over 30kg, please allow two business days.