No, skylights don’t always leak, but, they often do. No matter how good the skylights are, and how well they were installed, they are prone to leakage. Usually it’s when there are heavy winds and rain, or built-up snow and ice.
But, there is a trade-off: skylights can add a lot to the aesthetics of a home. So, if you want skylights, make sure they are installed by a knowledgeable crew, and get the best quality skylights that you can, and expect leaks sometime in the future. Leaks are never good, but typically skylight leaks don’t cause tremendous problems. It’s a good idea to periodically inspect the skylights from the roof and seal/caulk any potential openings on a “preventive maintenance” basis.
For more related information click on this link: https://safeharborinspections.com/