Roof Overhang Window Sun Shade Dimensions

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Roof overhang window sun shade dimensions. The following snips show shading at noon on april 16 june 21 september 1 december 1 and february 1. An overhang is somewhat like an awning though it is part of the actual roof not an additional piece of equipment you attach to the roof or the side of the house. Overhangs should be designed and built to shade the windows and door during the summer when the sun is high in the sky but allow warming light into the harm during the colder. But the same overhang will not shade the entire window when the sun is lower second image.

No i just made the overhangs wide enough to provide the extra shade. Only a 3 feet 1 meter overhang third image provides enough shade to protect the entire window for that position of the sun. When the sun is higher in the sky first image a 2 feet 60 cm overhang is long enough to shade the entire wall. In short that means that the roof overhang should be of sufficient dimensions to optimize the amount of shade during the warm summer months but not be so large that they do not allow full sun exposure during the cold winter months.

For the south side of the home you should follow basic solar design principles. Cross index the 36 row and the mixed climate column and the recommended values are an overhang depth of 4 0 and a height above the window of 2 8.