Do Flat Roof Lanterns Leak?

A properly specified and professionally installed flat roof lantern should not normally leak. Water resistance depends on the quality of the roof lantern, glazing system, seals, flashing, drainage, roof construction, and installation. Incorrect fitting, damaged seals, inadequate waterproofing, or poor roof preparation can increase the risk of water ingress. Regular inspection of the roof lantern and surrounding roof area can help identify potential problems early. Choosing a suitable flat roof lantern and ensuring it is installed according to the manufacturer's instructions is important for long-term weather protection.

What causes a flat roof lantern to leak?

Leaks can result from poor installation, damaged seals, failed flashing, blocked drainage channels, defective components, or problems with the surrounding flat roof. Identifying the source promptly can help prevent further damage.

Can a leaking flat roof lantern be repaired?

Often, yes. Minor problems such as damaged seals or flashing may be repairable, while more serious issues may require professional assessment or replacement of components. The cause of the leak should be identified before repairs are carried out.