We are quite confident that Topseal will last as long as the building.

Regardless of where it's used. Click here to view the section on Performance. Topseal is a specially bended resin which has been carefully developed and formulated to provide a high performance roof covering. It is not based on ordinary general purpose resins and should therefore NOT under any circumstances be confused with those inferior resins.
Topseal is only available from Topseal Systems Ltd.
Topseal is installed on site, ONLY by approved contractors and is installed so as to form a monolithic layer directly onto the substrate. There are no joints that can fail unlike a felt roof. We are yet to see a Topseal roof fail that has been correctly installed. Topseal simply lasts & lasts & lasts & lasts...... We also provide a 20-year guarantee for your peace of mind.

View examples of Topseal Applications View section on Performance Return to Questions