ASCE 7-16 Rooftop Solar Panel Calculator
Important Notes
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(GCr n)nom data are placeholders.
For real design, digitize official ASCE 7–16 Figure 29.4-7 or use recognized tables.
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An is computed with Lb=10.
In practice, confirm building geometry per code footnotes to get correct Lb.
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Logarithmic interpolation is used on x‐axis to match the log‐scale figure lines.
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γa is included for demonstration, though strictly γa
is used in §29.4.4 (flush arrays).
Your actual scenario (tilted vs. flush) may differ.