Solar Roof Analysis: What It Is and Why You Need One Before Signing
A solar roof analysis tells you if your roof qualifies for solar before you sign a contract. Learn what to check and why an independent analysis protects you from bad deals.
Solar Roof Analysis: What It Is and Why You Need One Before Signing
You are thinking about solar. Maybe you got a cold call. Maybe a neighbor installed panels and you noticed their electric bill dropped. Maybe you are tired of watching rates climb every year.
Before you sign anything with a solar company, you need one thing: a roof analysis.
Here is what that is, why it matters, and how to get one without sitting through a two-hour sales pitch.
What is a solar roof analysis?
A solar roof analysis evaluates whether your roof is suitable for solar panels. It looks at several factors:
- Roof orientation — Which direction does your roof face? South-facing roofs produce the most energy in the northern hemisphere. But east and west facing roofs can still work.
- Roof angle — The tilt of your roof affects how much sunlight your panels receive. Optimal angles vary by location.
- Shading — Trees, chimneys, neighboring buildings, and even HVAC units can cast shadows that reduce panel output. Even partial shading on one panel can affect an entire string.
- Roof age and condition — Solar panels last 25 to 30 years. If your roof is 15 years old or older, you may need to replace it before installing solar. Otherwise you will be removing panels to fix the roof underneath, which costs thousands.
- Available space — How many panels can your roof hold? This determines your system size and potential savings.
- Structural capacity — Can your roof support the weight of panels, mounting hardware, and snow loads?
Why do you need one before signing?
Solar salespeople have a financial incentive to say your roof qualifies. They earn commissions on installed systems. If they tell you your roof is not suitable, they lose the sale.
An independent roof analysis has no such incentive. It gives you an honest assessment before you commit to anything.
Here is what happens without one:
- You sign a contract based on optimistic projections. The system produces less than expected because of shading or orientation issues you were not told about.
- You install panels on a roof that needs replacement in five years. Removing and reinstalling panels costs $3,000 to $6,000.
- You invest in a system that is too small or too large for your actual needs because the installer guessed instead of measured.
How much does a roof analysis cost?
Traditional roof analysis means an installer drives to your house, climbs on your roof, and spends an hour measuring and taking photos. This is usually free as part of the sales process. But it comes with the pressure of a sales pitch.
SolrScan offers a different approach. We use satellite imagery to analyze your roof remotely. You enter your address. We check orientation, shading, estimated roof age, and available space. You get a report in seconds for $19.
No sales call. No account needed. No pressure.
What to look for in your report
When you get your SolrScan report, pay attention to these key metrics:
- Roof score — An overall assessment of how suitable your roof is for solar. Higher scores mean better potential.
- Estimated annual production — How many kilowatt-hours your system could produce based on your location and roof characteristics.
- Shading analysis — A breakdown of how much shading affects different parts of your roof throughout the year.
- Recommended system size — How many panels fit on your roof and what capacity that gives you.
- Roof age estimate — How old your roof appears to be. If it is near or past 15 years, consider replacement before solar.
What to do after your analysis
If your roof scores well, you are in a strong position to negotiate with installers. You know what your roof can handle. You know the expected production. You can compare quotes against a baseline instead of taking the installer word for it.
If your roof scores poorly, you still save money. You avoid signing a contract for a system that will not perform as promised. You can explore alternatives like community solar programs or ground-mounted systems if you have the space.
The bottom line
Solar is a big investment. A roof analysis is a small one. Spending $19 to understand your roof before you spend $15,000 to $30,000 on solar panels is not just smart. It is essential.
Get your SolrScan report at solrscan.com. $19. Instant delivery. No account needed.
SolrScan estimates are based on satellite imagery and public data. Consult a licensed installer for a site-specific assessment.