Solar passive overhang design on skillion/clerestory roof?
My husband and I are in the design phase with an architect in Washington, PA (hour south of Pittsburgh..Stiller country). We are attempting to build a solar passive home with SIPS. Our architect has been great. He admitted early on to not having done many solar passive homes, which is expected, Pittsburgh is not necessarily a hub for efficient home design. So I’ve been doing alot of the calculations (which is fine by me, makes me feel useful).
The design is fairly basic: rectangle, with 4/12 pitch on the south, clerestory windows and a 6/12 pitch on the north. Ive attached a section for better orientation. Obviously, we can do 2′ overhang on the south of the 4/12. We’re questioning how effective a 2′ overhang/extension of the 6/12 would be for the clerestory. Does that upward pitch affect the calculations and how the windows are shaded? Or will the summer sun shine on the windows regardless of the extension?
I had the architect place the windows up higher in an attempt to shade them in winter, but I’d prefer them lower if an overhang/extension will work. I’ve been trying to use some of the online overhang design tools, but again, they don’t factor in the possibility of an upward pitch.
PS. What is the technical name for this kind of roof design??? Skillion? Shed? Leanto? Single pitch? Clerestory roof?
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