Automatic cross-check on footprint measurements

Not built yet. This page says what is planned and what exists in the code today.

What it will do

OpenStreetMap measurements checked for common footprint problems and, when flagged, re-traced from imagery.

The accuracy check for a bad footprint exists.

Re-tracing from imagery is not built yet.

Checked against the code on September 23, 2026.

Coming soon
Reports in the format contractors already use
Results laid out the way roofing measurement reports usually are: total squares, predominant pitch, facets, ridge, eave and rake lengths, and valley and hip counts.
Coming soon
Waste factor with the reason
A recommended waste percentage for each measurement, with the reason, based on roof complexity, pitch and number of facets.
Coming soon
Calibration from your past reports
Upload measurement reports you already have so RoofCalc can learn a correction for your area.

This one is not ready yet. Everything marked available on the features page is.