Is My Roof Good for Solar? The 2026 Homeowner Checklist

You are thinking about solar. You have seen the ads. You have heard the neighbors talk about lower bills. But before you call an installer, you need to know one thing.

Is your roof actually qualified?

Installers will tell you yes. They want the sale. Here is the reality. Roughly 40% of residential roofs in the United States have at least one disqualifying factor. Age. Shading. Orientation. Structural limits.

This checklist tells you if your roof makes the cut. If you want the exact numbers for your house, skip to the bottom.

1. Roof Age

Solar panels last 25 to 30 years. Your roof needs to last that long too. Installing panels on a roof that needs replacement in three years means paying to remove and reinstall the panels later. That costs thousands.

Rule of thumb: If your roof is more than 10 years old, get it inspected. If it is more than 15 years old, plan to replace it before going solar.

2. Shade Analysis

This is where most homeowners get caught. You look at your roof and see sun. But solar panels need consistent, direct sunlight from 9 AM to 4 PM. Trees, neighboring buildings, chimneys, and even HVAC units can cast shade that drops production by 20% or more.

The problem: You cannot accurately assess shade from the ground. Seasonal tree growth changes shading patterns. The sun angle shifts throughout the year.

The solution: Satellite-based shading analysis. This is what SolrScan uses. It maps your roof against years of solar path data and gives you a precise shade score.

3. Roof Orientation and Pitch

In the Northern Hemisphere, south-facing roofs produce the most energy. Southwest and southeast are also strong. East and west facing roofs can work but produce less. North-facing roofs are generally not worth it.

Ideal roof pitch is between 15 and 40 degrees. Flat roofs can work with mounting systems but cost more to install.

4. Available Square Footage

A typical residential solar system is 6 to 8 kilowatts. That requires roughly 300 to 400 square feet of unobstructed roof space. If your roof is small or heavily cluttered with vents, skylights, or HVAC equipment, you may not have enough room.

5. Structural Integrity

Solar panels add weight. Roughly 2 to 4 pounds per square foot. Most modern roofs can handle this. Older homes, flat roofs, or roofs with known structural issues may need reinforcement.

The Fast Track

You can go through this checklist yourself. But you will still be guessing. You do not have satellite data. You do not have precise measurements. You do not have engineering analysis.

SolrScan gives you all three for $19.

Our instant report includes:

• Exact usable roof square footage
• Satellite-based shading analysis with seasonal breakdown
• Optimal panel layout and system size recommendation
• Estimated energy production and savings
• Roof age and orientation assessment

No waiting. No sales call. No free quote that turns into a high-pressure pitch.

Get your SolrScan report for $19

Know your roof. Before you call anyone else.