LapsedWDWFan
Member
I actually took th. time to look this up. In the 2010 Florida building codes, section 502.1.1.1 table 2 states that skylights need to have an SHGC (Solar Heat Gain Coefficient) of less than .19. That is the measure of how much solar energy penetrates the fixture. The higher the number, the more energy gets through. I then looked up the recommended SHGC for a greenhouse figuring that would be about what you would need to keep plants alive. That value .60 or higher, three times more than building codes allow. That should confirm what @tikiman is saying.
Edit: Additionally section 502.2.5.1.1 specifies that "The skylight area shall not exceed 3 percent of the gross roof area." So that could factor in as well.
Edit: Additionally section 502.2.5.1.1 specifies that "The skylight area shall not exceed 3 percent of the gross roof area." So that could factor in as well.
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