What are the dangers of leaking balconies?
A leaking balcony is a common problem within all types of buildings and structures. These leaks can lead to other more serious problems for your building including structural damage due to rotting timber, or concrete spalling/concrete cancer caused by moisture entering the structure, electrical issues, collapse of the structure, as well as pest issues.
Untreated balcony leaks can cause costly and unsightly damage to balcony substrates, as well as surfaces and areas underneath the balcony area. This can also cause unsightly damage to the balcony surfaces, causing cracks in tiles, efflorescence or calcium build up, and lifting or disbanding the tiles or over coatings. Leaks or ingress of moisture within a building or structure are the number one defect among buildings or structures in NSW.
Causes of leaking balconies
Incorrect application or failure of the waterproofing membrane
Poor substrate or structure construction
Inadequate drainage or poor substrate gradient fall
Inadequate adjacent flashings, including window or door sub seal flashings