1. Find the right building
Enter the street address in RoofSnap and confirm that the satellite view shows the intended home. Look for additions, detached garages and neighboring buildings before accepting an outline. Coverage depends on the Google Solar data available for that location.
A satellite image is not a live photograph. Compare the visible roof with recent property information, especially if the home has had an addition or a roof replacement.
2. Review area and pitch together
A roof footprint and a sloped roof surface are different measurements. Sloped planes have more surface area than their horizontal projection. Review individual facets and the predominant pitch rather than relying on a single total.
RoofSnap flags some low-confidence facets and offers options to keep, remove or snap them to the dominant pitch. Automatic artifact exclusion is on by default; review excluded facets before preparing an estimate.
3. Check the edges
Eaves and rakes describe the outside edges; ridges, hips and valleys describe how roof planes meet. Check these separately because starter, drip edge, ridge caps and valley materials depend on different lengths.
Internal lines depend on available elevation data. If a detailed trace is unavailable, do not treat an outline-only view as proof that the roof has no hips or valleys.
4. Turn measurements into a takeoff
After reviewing the measurements, use the material calculator for quantities and a separate waste allowance. A RoofSnap PDF report costs $6.99, with no subscription. Buyers can return to My reports to download their purchased reports.
Confirm hidden conditions, roof changes, flashing details and final order quantities on site. A measurement report is not a labor quote, structural assessment or permit approval.
Sources & further reading
Product details reflect RoofSnap’s current measurement and report workflow. Geometry examples are rounded illustrations, not measurements of the pictured property.
Google Solar API documentation