Roof Measurement Prototype
A roof measurement prototype for rough planning—not a professional measurement.
Search an address, view the actual home in live satellite imagery, and trace visible roof sections for rough planning. A local contractor should verify the actual scope in person.
Live satellite roof tracer
Live satellite tracing is not configured yet.
This guide remains available for rough planning. To show the live Google satellite map, the site needs a browser-restricted Google Maps JavaScript API key provided through the `NEXT_PUBLIC_GOOGLE_MAPS_API_KEY` environment variable.
Planning-only guidance: do not use this guide to assess roof safety, condition, architectural accuracy, contractor availability, or a final project scope.
What aerial tools can do
A good first pass, with clear limits.
Helpful for
- Separating visible roof planes into rough areas
- Creating questions for contractors before a visit
- Comparing broad project scale from one option to another
Not reliable for
- Exact material quantities, pricing, or installation methods
- Hidden damage, layers, flashing, ventilation, or decking
- Pitch corrections, code requirements, or safe access needs
Five simple steps
Measure what you can see—carefully.
Use the live satellite tracer as a rough planning aid. Do not climb onto the roof or rely on imagery as a safety or condition assessment.
- 01
Find the home
Enter the property address in the satellite tracer and confirm that the physical home is centered before placing any points.
- 02
Choose a clear overhead view
The live map opens in satellite view. Zoom until visible roof edges are clear, but do not treat imagery as an inspection or condition assessment.
- 03
Trace one roof section at a time
Tap or click each visible corner, close the roof section, then repeat for garages, porches, additions, dormers, or other separate planes.
- 04
Write down the flat areas
Use the approximate closed-section totals as notes. If a section is unclear, leave it out or make a note for a contractor to verify in person.
- 05
Check the total before using it
Add the sections once, then compare the result against the home’s footprint or a second pass. Aerial measurements are useful for a starting range—not an exact roof takeoff.
Planning estimator
Turn your section notes into a rough area.
Enter the flat areas you measured from aerial imagery. The allowance is a simple planning buffer for cuts and complexity; it does not calculate roof pitch or actual materials.
When you are ready
Bring your rough notes. Get a real local scope.
Roof pitch, overhangs, dormers, valleys, access, damage, and local requirements can materially change the scope and cost. A verified quote starts with a contractor checking those details.
$3 per homeowner request. No obligation to hire.