Skylight / July 12, 2018 / Odo Vaillancour
Some people in an effort to let in plenty of light choose the biggest skylight they can afford. But bigger is not always better when it comes to choosing skylights for your home. The size of the skylight should not be more than 5% of the floor space if there are other windows in the room. It should be less than 15% of the floor space if there are few windows in the room. Unlike commercial buildings where structures are huge there is only so much that a room within the house can take. So choose skylights that suit the size of the room. Style: Although most skylights are rectangular these are available in a variety of sizes shapes and colors.
Skylights may seem inexpensive at first glance since a quality 2x4 foot skylight along with a flashing kit costs anywhere from $100 to $400. However you need to consider adding another $3000 for installation costs. That being said you first need to carefully evaluate if installing a skylight is the right thing for your home. Till recently having a roof slope determined if you could install a skylight. Flat roofs or those which were too steep required special tools and techniques. However many of the skylight kits available today include a comprehensive installation kit and procedures which permits it to be installed on all types of roofs.
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.