2 Must-Know Tips Before Installing Solar Panels
Thinking of installing solar panels on your home? Great choice! Solar energy is one of the smartest ways to cut your electricity bills, reduce your carbon footprint, and boost your property value.
But before you dive in, there are a two important things you should know.
Check Your Roof
Before you even start shopping for solar panels, take a good look at your roof. It’s the foundation for your entire system, so its condition plays a huge role in the success of your solar investment.
Is My Roof Good for Solar Panels?
Ask yourself:
How old is your roof?
Does it face the right direction (usually south in the Northern Hemisphere)?
Is there enough clear space without chimneys or vents in the way?
If your roof is damaged, nearing the end of its life, or shaded most of the day, it might not be ready for solar yet. Fixing or replacing your roof before installation will save you time and money later on.
Roof Requirements
Roof should be less than 10–15 years old
Minimum 200–400 square feet of usable surface
Roof angle between 15–40° is ideal
Structure must be strong enough to hold panel weight (usually 2–4 pounds per square foot)
If you’re not sure, get a roof inspection. Many solar companies include this as part of their solar panel installation checklist.
Why This Step Matters
Skipping this step is one of the most common mistakes to avoid with solar panels. If your roof needs repairs after installation, you’ll have to remove the panels—adding extra cost and hassle. Taking the time to evaluate your roof now ensures your solar panels last longer and perform better.
2. How Sunlight and Shading Affect Energy Production
When it comes to solar panels, sunlight is everything. But it’s not just about having a sunny climate—how your home receives sunlight throughout the day makes a big difference.
Things to Consider Before Going Solar
Orientation: South-facing roofs get the most sun in most regions. East- and west-facing roofs also work but produce slightly less.
Shading: Trees, chimneys, and tall buildings can block sunlight and reduce panel efficiency.
Climate: Panels still work on cloudy days, but you’ll get more output in sunnier areas.
Solar installers use tools like a solar pathfinder or drone imaging to check your property’s sun exposure. This is a key part of any solar panel installation guide.
Why This Step Matters
Even partial shading on one panel can lower your entire system’s output if you’re not using microinverters or power optimizers. Knowing this helps you choose the right setup for your space.
💡Pro Tip: Ask your installer for a “solar shading analysis” during your consultation. It’s a great way to predict future energy production.
