Building defects database - Defective roof light

Record details

Defective pressure plate system to a glazed roof-light. The clamping of the outer gaskets is insufficient and water penetrates the outer gasket into the drainage channel. Water in the drainage channel cannot escape owing to the lip of the roof upstand obstructing the channel at the bottom of the photograph. Note the silicone top capping on the right of the photo, added to try and alleviate the leakage.