Skylight / July 7, 2018 / Arnou Gabriaux
It is recommended that the skylight size should never be more than five percent of the floor area in rooms with many windows and not more than fifteen percent of the rooms total floor area for spaces with very few windows. Skylights on north-facing roofs provide cool illumination while east-facing roofs provide maximum light and heat in the morning. West-facing skylights provide afternoon sunlight and heat. South-facing skylights provide more passive solar heat than any other location. Skylights are an excellent way to bring more natural light into your home. Just one skylight can dramatically transform your room by adding 30% more natural light than a window. This helps you save energy and makes your home warmer during the winter.
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.
Since most skylights are meant to be installed on a roof with asphalt shingles you may need to pay extra for flashing if you have tile or metal roofing. When you think of skylight design you may think that only refers to the visible shape of the panel chosen; in fact there are many aspects to skylights that relate to the design and affect the usefulness of the skylight. Some skylights need to provide light for a large area while others have a different purpose. Learn all you can about skylights and skylight design as a consumer before you consult a professional. This will help you to understand better the decisions you will have to make. Skylights are beneficial to have in your home for many reasons.