Is Your Roof Too Old for Solar? The 15-Year Rule Every Installer Knows

The roof age problem no one talks about

You got a quote for solar. The installer said yes. You signed the contract. Then they told you your roof needs to be replaced first.

That is a $15,000 surprise on top of a $30,000 solar system.

Most solar installers know this rule: if your roof is older than 15 years, it probably needs to be replaced before panels go on top. But they will not always tell you upfront. Their commission depends on closing the deal.

Why roof age matters for solar

Solar panels last 25 to 30 years. Your roof needs to last that long too. If your roof fails in year 7, the panels have to be removed and reinstalled. That costs $3,000 to $8,000 in labor alone.

Here is what the 15-year rule means:

• Roof under 5 years old: Ideal. No replacement needed. You can install solar immediately.
• Roof 5 to 10 years old: Good condition. Most installers will approve without issues.
• Roof 10 to 15 years old: Borderline. Some installers will install. Some will recommend replacement.
• Roof over 15 years old: High risk. Most reputable installers will require roof replacement first.

How to check your roof age

If you bought the home, your closing documents should have a roof inspection report. It will list the approximate age.

If you built the home, you know the age.

If you are unsure, look at your roof shingles. Asphalt shingles last 15 to 25 years. If they are curled, cracked, or missing granules, your roof is near the end of its life.

What SolrScan tells you

SolrScan does not tell you your exact roof age. Satellite imagery cannot determine that. But it does tell you:

• Whether your roof structure can support solar panels
• Your roof orientation and angle
• Shading from trees and neighboring buildings
• Estimated panel count and energy production

If your roof is older than 15 years, SolrScan will flag it as a concern. You will know before you sign anything.

The $19 question that saves you $15,000

Before you get a solar quote, run a SolrScan report. It costs $19. It takes 60 seconds.

If your roof qualifies, you go to the installer with confidence. If it does not, you saved yourself from a contract that would have cost you thousands in unexpected roof replacement.

Get your roof analysis at solrscan.com

Bottom line

Your roof is the foundation of your solar investment. Do not skip the check. $19 upfront is cheaper than a $15,000 surprise.