wattbench
Design Tool

Roof Direction & Pitch Check

Record a roof's direction and pitch, then read source-backed generation-timing guidance without an invented yield percentage.

Sources listedReviewed July 2026Our methodology
Use the direction the module face points, not the roof ridge.
Enter the measured or documented pitch from 0° to 90°.

Live result

Edit inputs

Direction

North

Entered pitch

22°

Broad daytime exposure

North-facing roof areas usually receive the most sunlight across the day.

This is an orientation check, not a yield simulation. Use location-specific design software for production estimates and account for shading, row spacing, weather and the actual equipment.

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Key takeaways
  • Records the direction and measured or documented pitch of a roof area.
  • Explains whether the aspect shifts generation earlier or later in the day.
  • Leaves production estimates to location-specific design software rather than presenting unsupported precision.

How it works

This records the roof direction and pitch, then gives a source-backed read on when that aspect tends to generate. It does not manufacture a yield percentage without location and weather data.

  • Direction. North-facing roof areas usually receive the most sunlight over the day. East shifts generation earlier; west shifts it later.
  • Pitch. Record the actual roof or frame angle. Flat-roof tilt frames can change row spacing and inter-row shading, so pitch alone cannot predict output.

The direction guidance follows the Australian Government Solar Consumer Guide. Use location-specific design software for production estimates, and see our orientation field guide for the practical context.

Estimates only: for guidance, not a quote or a compliance certificate. Verify against the current AS/NZS standards and a licensed design. The maths runs in your browser. Nothing is sent to Wattbench unless you sign in and deliberately save the result.

Source ledger1 source

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Frequently asked

Is this tool free to use?
Yes. The tilt and orientation estimator is free and needs no sign-up. It runs entirely in your browser.
Is my data stored or sent anywhere?
The calculation runs in your browser. Nothing is sent to Wattbench unless you sign in and deliberately select Save result.
Why does this tool not show a yield percentage?
Direction and pitch alone cannot produce a defensible yield estimate. Location, shading, weather, row spacing and the selected equipment also matter, so use location-specific design software for production estimates.