Confidence score and data source with every result

Available now in the RoofCalc app.

What it does

Every measurement comes back with the data source that produced it, a confidence score, and why better sources were skipped for that address.

The engine records every source it tried and the reason it failed (no key, low imagery quality, no footprint), and returns that list with the result.

The app shows a two-level label; the score, source name and skipped sources are in the API response but not on screen yet.

Checked against the code on September 23, 2026.

Measure a roof from an address
Type an address and get the roof area in square feet, a facet count and a complexity rating, saved to your account.
Google Solar roof data, OpenStreetMap fallback
Paid plans try Google Solar building data (sloped roof segments and pitch) first. Every plan falls back to OpenStreetMap building footprints.
Save your job rates
Save your price per square foot, tear-off per layer, decking per sheet, disposal fee and margin on your account.

Create a free account, choose Contractor, and measure an address you have already measured by hand.