Skylights are specifically designed to fill your home with sunlight, not water. If installed properly, skylights are beautiful additions to any home—more so if you’re a person who likes to revel in the inherent beauty of a nice, sunny day even when you’re indoors. Still, there would be times when skylights let in things other than sunlight.
There are various reasons why skylights would leak, such as damaged, corroded or improperly installed flashing. In a few instances, however, what you might think of as ‘leaks’ are actually the result of less obvious problems. For example, water can make it through the roofing upslope of the skylight and then leak around the framing. Condensation may also play a part; it can collect and then drip off a skylight’s improperly insulated underside under specific circumstances.