Free Roof Measurement Tool – Instant Satellite Data
Enter an address for an imagery-based estimate of roof area, pitch, and segment data. Review the source and confirm the subject building before relying on it.
Free Roof Measurements
Enter an address – get an imagery-based estimate
Planning work on your home? Use the measurement to budget and compare quotes.
See your detailed roof estimate
Enter your email to reveal the imagery-based estimate on the next screen. We’ll also send the free PDF report to your inbox.
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How it works
Enter an Address
Type any US property address into the form above.
We Analyze Imagery
Our system uses available aerial and satellite-derived roof data to estimate geometry.
Get Your Report
Review the available area, section, pitch, source, and imagery context.
Why a consistent roof-size reference matters
When contractor quotes use different roof areas, it is hard to tell whether the price or the scope changed. The free report gives you one imagery-based reference for asking why those assumptions differ; it does not replace a contractor’s field measurement.
How homeowners use their roof report
Compare quote scope: Ask why contractors used different roof sizes or waste factors
Plan a budget: Start with a disclosed national cost range before collecting local bids
Prepare questions: Bring the source, imagery date, and roof sections to an inspection
Verify before acting: Confirm the building and dimensions before a claim, contract, or material order
What the report can include
- Estimated roof area: Combined imagery-derived square footage of the selected roof
- Section breakdown: Available area and orientation context for detected roof facets
- Pitch data: Available slope context that can affect material and labor assumptions
- Orientation: Available compass direction for each reported section
- Source context: Provider and imagery date when available
What to check in contractor quotes
Put each quote beside the same report reference, then ask about any difference in measured area, waste, tear-off, decking, flashing, ventilation, permits, and warranty. A different total is not automatically wrong; compare the written scope and confirm field measurements.
Is this a free roof estimate?
Yes. Enter your address above for a free imagery-based roof-area estimate plus a national replacement-cost range. Use it to prepare for local quotes, then rely on an on-site inspection for the final building, dimensions, condition, and scope.
Free roof estimate by address — what you’ll see
An estimated roof size: total square footage and available section context from imagery
A cost reference: a national planning range, not a local contractor bid
No account required: review the estimate before deciding whether to buy the paid report
Use the free estimate to ask consistent questions about contractor quotes. Differences can come from field measurements, waste, product choice, access, damaged decking, code requirements, or omitted scope, so compare the line items before comparing the total.
Roof measurement reports for roofing estimates
Roofing contractors comparing roof measurement software can use the same address-first tool for a fast pre-bid view of roof area, pitch, and facets. Choose Contractor above so the report uses estimating-focused language and your request stays out of the homeowner lead path.
From roof report to estimate without retyping the address
Review the scope: check the subject building, total area, pitch, and visible roof sections before the site visit.
Keep the job context: the emailed contractor report includes a path to a free BuildFolio workspace with the measured address ready to use.
Verify before bidding: imagery-based measurements are a starting point, not a certified takeoff. Confirm the building and dimensions on site before a final bid or material order.
This is a focused report-to-estimate workflow, not a separate contractor-only calculator. Homeowners and roofers use one canonical tool, which keeps the existing free roof measurement page and its search history intact.
A roof size calculator by address — no measuring required
Most roof size calculators ask you to measure your own roof first, then type in the numbers — which defeats the point if you can’t safely get on a ladder. This is a roof size calculator by address: you type where you live, and it measures the roof for you from satellite imagery. There’s nothing to enter but the address, and nothing to install.
Under the hood it’s an AI roof calculator — it detects each roof face from overhead imagery, accounts for the slope, and adds the faces up, rather than assuming your roof is a flat rectangle the size of your house. That’s why the answer to “how big is my roof” is usually larger than the footprint of the building: a pitched roof has more surface than the ground it covers.
Frequently asked questions
How accurate are these measurements?
Accuracy varies with imagery quality and age, subject-building selection, attached structures, trees, and roof complexity. Treat the result as a planning estimate. Confirm the building and dimensions on site before a final quote, claim, contract, or material order.
What addresses are covered?
We have coverage for most residential and commercial properties in the United States. Rural or newly constructed properties may have limited or no data available.
How recent is the satellite imagery?
Imagery dates vary by location. When the measurement provider supplies a date, the report shows it so you can judge whether property changes may have occurred since capture.
Can I use this to compare contractor quotes?
Yes. Use the same imagery-based size reference for each quote, then ask why measured area, waste, products, tear-off, decking, permits, or warranty differ. The report does not establish that a contractor’s field measurement is wrong.
How does this tool get roof measurements?
We use available aerial and satellite-derived building data to estimate roof area, pitch, and sections. Coverage and confidence vary by property. Confirm the selected building and dimensions on site before a material order or final bid.
Is this really free?
Yes, the roof measurement is free for homeowners and roofing contractors, with no credit card required. An optional paid report may be offered after the free result.
Can roofing contractors use this roof measurement report?
Yes. Choose Contractor before entering the job address. The report uses estimating-oriented language and provides a free-workspace handoff with the address ready. It is an imagery-based pre-bid aid, not a certified takeoff; verify the subject building and dimensions on site before a final bid or material order.
Can I get a free roof estimate without a contractor visit?
Yes. The tool gives you a free imagery-based roof estimate and national planning range before a visit. It is useful for preparing questions and a budget, but the final quote should use verified field conditions and local scope.
How do I use BuildFolio’s free roof measurement tool?
Enter a property address and an email for the PDF; no account is required. The tool uses available imagery and roof data to estimate area, pitch, and sections. Use the result for planning and quote questions, then verify it on site before a claim, final bid, or material order.
How big is my roof?
Enter your address above for an estimated sloped roof area in square feet and roofing squares (one square = 100 sq ft). A pitched roof can have more surface area than its ground footprint. Verify the selected building and dimensions before relying on the estimate.
Is this an AI roof calculator?
The tool combines available aerial or satellite-derived roof data into an area, pitch, and section estimate, then pairs that with a disclosed national planning range. Coverage varies, so verify the subject building and dimensions on site before ordering material.
Satellite Roof Measurements · Roof Square Footage Calculator
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