Skylight / July 11, 2018 / Nicolas Charlebois
The air near the ceiling is automatically cooled when fresh air flows in from outside. These roof skylights are so designed that they open and close a little to let in the fresh air. The glass tilts at about 45 degrees. There is a small handle to manually open the venting roof skylight. You crank the handle slightly to open or close or adjust the angle and position of the glass. The venting roof skylights are located in the ceiling of the house and are hard to reach so there is an extension to the handle. Otherwise every time you want to open or shut the venting roof skylight you will need a ladder or a high stool. Nowadays electronically operated venting skylights are also becoming very popular.
For example the optimum slope for a south-facing skylight in Columbus Ohio at 40º North latitude is 45º to 55º. Every skylight has a "shaft" which governs how much light is admitted into the room below. If all four sides are flared then the light is spread over a wide area. If your skylight has a shaft with perpendicular sides the light is focused straight below. If your skylights shaft is flared on only one or two sides then the light is sprayed in the flared direction. Ventilation If you wish you can have a skylight which also provides ventilation as well as light to your room. This allows you to release the hot air which collects at your ceiling.
A skylight might seem like the easiest option for rooms that are cramped dingy and dark. In many cases it is but only if the right kind of skylight is combined with the right type of roof. Fixing a skylight on the roof is not like placing a window in the wall. Most of us think only of the interior when we fix skylights. But did you know that your first priority should be your roof followed by the positioning of the skylight on the roof? The shape of the roof is a vital to the selection of skylights. There are different skylights for sloped roofs and different skylights for flat roofs. Incorrect installation can lead to problems in the future.