When to use this tool
After you know roughly which roof planes are usable. It answers: how many panels fit " "with row spacing and setbacks applied on a single plane.
Steps in the calculator
- Draw or adjust the roof outline on the map or diagram.
- Set panel dimensions (or accept defaults) and orientation (portrait/landscape).
- Review inter-row spacing and edge setbacks — tune for your design rules.
- Note the panel count and area used; export mentally to your worksheet.
Limits
Single-plane quick check only. Multi-roof shading, string design, and yield live in the full " "Photonik Pro app. When the layout is more than a sketch, move the job there.