Sark-IT Non Breathable Waterproof Roofing Membrane 1 x 15m

TIMBAKIT LTD

£30

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 minimizing unwanted noise. • A waterproof underlay • Used for

TIMBAKIT LTD's own words, read from their page.

Buy from TIMBAKIT LTDOut of stock. Price seen 2026-09-19. Not an affiliate link, we earn nothing from it.

Where this comes from

The part other shops don't tell you. Three separate questions, kept separate on purpose, each with its source.

UK company
Registered at Companies House as TIMBAKIT LTD, number 12842226. Checked 2026-08-29.
Means the business is a British legal entity, not a British-sounding name owned elsewhere. It says nothing about where anything is made.
UK operations
Not yet checked.
Means people employed here, or premises they actually work from. We keep this separate from the company badge because a registered office can be an accountant's spare room, and a company can be registered in Britain while everything it does happens somewhere else. Where we have not looked, we say so rather than assuming.
British-owned
Not established. Many companies file a statement rather than naming a controlling shareholder.
Read from the register of people with significant control, following the chain of holding companies. It does not gate anything: a firm can be made here and owned elsewhere, and that is worth telling you rather than hiding.
Where it is made
The maker doesn't say, so neither do we.
This is about the individual product, not the company. A British firm can sell things made abroad, which is normal and not a criticism. We would rather tell you which is which than average them into a score.