Skylights of today are way different than what it used to be earlier. These days, skylights do not come in dome shapes and single pane designs. They are double paned and are made up of thicker glass. Skylights have been engineered for energy saving purposes. Such high tech skylights ensure that there is lesser heat loss in winters and the temperature remains cool in summers. Leaving aside that, few interesting features such as electric venting and rain sensing have come into place. Electric venting regulates the air inside the room and in a way; the skylight serves as a passive air-conditioner. Rain sensors let the skylights close on their own in case of a rain shower. Care must be taken while installing skylights at your home. You must make sure that there are no cavities left while installing a skylight. If there are, you must seal it immediately. The best way to close such cavities is to use spray foam insulation. Skylights are the most economical way of lighting your house. It can especially be utilized in spring and summer season. If you have large windows and strategically placed skylights, you can surely save a lot on energy for lighting your home.