Skylight / July 8, 2018 / Baptiste Allain
Fixed skylights are among the most popular and they come in a wide variety of shapes. Ventilated skylights can be opened and closed to allow the passage of air. These make a great addition to bathrooms and kitchens and they can be controlled by temperature sensor remote control wall switch and manual or motorized cranks. Tubular skylights are among the newest styles. They are popular because they are small and can be used where full-sized skylights will not fit. They allow for the passage of light and theyre installed the same way as regular skylights. Flat glass skylights are built into a framework (usually made of wood rubber or metal) and can be placed directly into a cut hole in your roof.
For one thing skylights are positioned in such a way that they are inaccessible unless they are operated by remote. Even in cases of motorized skylights which are easily manipulated there are still some disadvantages that are inherent to skylights that are not present or minimized in windows. Vertical windows lose less heat by convection when compared to skylights. Also since windows are generally protected by overhangs or shrubs they lose less heat by radiation. On the other hand skylights are directly exposed to the sky. Thus they lose more heat by radiation. Proper insulation can reduce this heat loss to a large extent. In the summer season skylights are more exposed to the direct heat of the sun than windows.
This heat gain can be minimized by installing your south-facing skylight in the shade of deciduous trees or adding a moving window covering. Skylights come in all shapes and sizes. Its size greatly affects the illumination level and temperature of the space below. As a rule of thumb the size of a skylight should never be more than 5% of the floor area in rooms with many windows; and no more than 15% of the rooms total floor area for spaces with few windows. Dept. of Energy. Glazing Like windows skylight manufacturers use different types of glazing to improve their energy efficiency. The glazing comes in three different forms. Plastic glazing - This type of glazing is usually inexpensive and less likely to break than other glazing materials.