Skylight / July 15, 2018 / Arnou Gabriaux
Skylights let natural light stream into your home bringing warmth and a feeling of spaciousness. When properly selected and used they can reduce your need for electric lighting and minimize your heating and cooling costs. There are also health benefits to this wonderful sunlight that shines on us. If you lack sufficient sunlight on your skin you will suffer health effects. Thats because the human body was designed to be exposed to sunlight on a frequent basis. We evolved after all under the natural sun not under fluorescent lighting. Our environment was one with plentiful sunlight. Skylights can provide up to 30% more natural light than vertical windows while making a small space seem bigger.
Another modern option is to have a replacement skylight with double panes of glass with a layer of argon gas infused in between the panes. New features and options make getting a replacement skylight a more viable option than just shingling over the old one. Remote controls make it possible to open and close a skylight on a whim rather than having to clamber about on ladders. Some skylights can also come with rain sensors so they will close the moment they feel raindrops or too much moisture. These options allow the skylight to vent the house while also protecting it against damage.
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.