Skylight Leaking After New Roof

Either the skylight wasn t installed correctly or the flashing and seal around it have become worn.

Skylight leaking after new roof.

A skylight in a humid room such as a bathroom can drip moisture it appears to be a leak but it isn t. No matter how well your skylights were installed it is still possible for them to leak during heavy rains. Sealants may just have to be added to stop the leaking. Another possibility is that the other parts of your home are actually leaking and you are just mistaking it as a roof leak.

Installation issues are usually the culprit for leaking roofs that are relatively new. No matter how skilled your contractor may be ruffling with that old skylight can cause problems. Your contractor is correct in saying that it is possible for a skylight which has never leaked to start leaking in the future after being disturbed during the roofing process but this is unlikely in your case. New roof put over the old roof and the the gap between the new roof and the skylight is now much less would that cause a leak the 3 leaking skylights are operable and the one non leaking skylight is in operable.

If you have a roof leak that appears to be at the skylight the first thing to do is rule out condensation as the source. In between the frame and the roof this is a roof problem. Usually the leak is due to faulty flashing. Sept 1 2012 anonymous said.

At 11 years old the flashing should still be in perfect shape so you might not even have to replace the flashing. The leak might not be a leak at all but the result of condensation forming on the inside of the glass during cold weather. Skylight leaks in heavy rain are a common source for roof leaks. There are several possibilities as to why your skylight is leaking.

When the warm moist room air reaches the cold glazing of the skylight it condenses and drips down. Use a putty knife to add a layer of roofing cement in the gap between the edge of the flashing and the roofing. Using old skylights with a new roof can cause leaks say your skylight has performed perfectly in the years leading up to your roof replacement. In between the glass and the frame this happens from a worn or weathered seal in the skylight itself.

Then lift the roof shingles away from the edges of the skylight so you can access the flashing. Especially as your home ages a bit. Since the leak is in the interior there is chance that the skylight itself is leaking between the glass and the frame or the frame and the roof. Skylight leaks and i wonder why.

It could also be caused by an unrelated roof leak above the skylight that is finding its way out through the ceiling opening around the skylight.