Skylights
Skylights are windows that are installed in your roof rather than your home's walls, and add light to dark and/or out-of-the-way areas. Skylights are also used to add light where privacy is a concern, such as in bathrooms or bedrooms. Some skylights open; others do not. Skylights may be fitted with glass or plastic panes.
Although skylights can add new life to a dingy room, they have the potential to create several problems if not properly installed. Skylights with improperly installed or no flashing can cause rainwater or snow to leak into your walls and living spaces. In addition, plastic skylights have a tendency to crack over time, especially in areas that get a lot of snow.