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Topseal Specification

Topseal is a BBA certified GRP roofing system fitted with a 20 - 40 year product and workmanship guarantee. Topseal systems are cold liquid applied and are fitted by our national network of trained and approved installers. Developed and manufactured in the UK, Topseal is designed to deliver a roofing solution to suit practically any shape or size of roof in a range of colours and finishes for applications from technically challenging replacement lead gulleys on listed buildings through to large scale commercial projects. Topseal has a BBA certified range of systems, that are also IS0:14001 and ISO:9001 certificated.

The unique versatility of Topseal means it can be used and is specified for a wide range of waterproofing applications from small domestic projects, such a dormer roofs through to large scale commercial projects including commercial roofs, balconies and walkways.

We also offer RIBA approved CPD presentations on “An introduction to GRP Waterproofing” If you require a CPD on the Topseal products, please fill in the arrange a CPD form on the left hand side or alternatively contact us by phone to discuss a suitable date and time for your team.

Why not explore the Topseal range of BBA certified roofing systems and login to our comprehensive specification login area to see how we can benefit your flat roofing project today.

Alternatively you can call Topseal’s experienced and friendly technical team today to help you with any further technical information on the Topseal fibreglass (GRP) systems, and if needed, to assist you in making sure you specify the right Topseal system for your project no matter how big or small it maybe.

Latest News


  • Become a Topseal Approved installer!

    March 23 2017

    “There’s good news for roofers and contractors - the market for flat roofing has grown steadily over the last two years (source AMA Research*). Although growth has been steady, it has been continuous

  • Churches given Topseal treatment

    February 16 2017

    Two churches, in North Yorkshire and Merseyside have specified the new BBA certified flat roofing system, Topseal Direct Lay, for roof covering solutions.

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