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Home Home Improvement

7 Ways Solar Panels Can Damage Your Roof (& What To Do)

Tom Parker by Tom Parker
March 7, 2025
in Home Improvement, Roofing
0 0
roof solar panels

Solar panels are everywhere these days, you can find solar panels in both residential and commercial places, which is a good thing. People are adding them to their homes to save up on electricity bills and also do their part for the environment. 

And honestly, it makes sense. The sun is a free energy source so taking advantage of it to create electricity is way better. Overall, solar panels are worth the investment but it’s also important to know how solar panels impact the residential roofs. Knowing the ups and downs, will help you avoid big issues in future.

If the solar panels are not installed properly or not maintained properly, this can cause leaks, weaken your roof, or even shorten its lifespan.

A study from the National Renewable Energy Laboratory (NREL) found that improper installations can actually cause the roof to wear down faster than normal. This might not be something anyone who’s going to install solar panels would like to hear, and to avoid such issues, you can do something that we are going to discuss in this post.

So in this post, we’re breaking down seven ways solar panels can damage your roof and more importantly, how to avoid those problems.

It’s for those who do not have panels and are thinking about getting them, knowing what to watch for can save you time, money, and lot’s of stress. So, without any further wait, let’s get into it.

Table of Contents

Toggle
  • 7 Ways Solar Panels Can Damage Your Roof
    • Improper penetration holes
    • Roof Structural Damage from Added Weight Of Solar Panels
    • Disrupted airflow
    • Water Drainage Issues
    • Fire Hazards from Faulty Wiring
    • Voiding of roofing warranties
    • Roof Damage During Panel Removal
  • Conclusion

7 Ways Solar Panels Can Damage Your Roof

Solar panels are great for cutting on the energy costs but if they’re not installed properly, your roof might have to pay the price. There are high chances of issues like leaks, cracks, even structural damage, happening more often than you’d think. A report from NREL found that improper installation can reduce roof lifespan which can lead to expensive repairs.

We’re looking at seven ways solar panels can damage your roof and, more importantly, how to avoid those headaches. From poor mounting techniques to overlooked maintenance, small mistakes can turn into big problems. But the good thing is that most of these issues are preventable with the right approach.

Improper penetration holes

The way solar panels are attached to your roof matters more than you think. If the mounting brackets aren’t sealed properly, water will find its way inside your home. A tiny gap around any bolt today could lead towards a stained ceiling or rotting wood next year.

So if you spot any signs of trouble like water spots on the ceiling, dripping in the attic, shingles lifting near the mounts, don’t wait and get them fixed by a professional as soon as possible.

In such a scenario, you can try a solid flashing system, quality sealant, and hire some experienced installers who know what they’re doing. And always go through the warranties carefully because some cover leaks while some don’t. It’s better to be safe than dealing with a soaked attic later.

Roof Structural Damage from Added Weight Of Solar Panels

Not all roofs are built the same and not every roof is ready to take on the weight of these solar panels.

A well-installed system won’t cause problems, but if the roof is already weak, has old shingles, rotting wood, or sagging beams, it can buckle under that extra load. This not only looks weird but it’s also quite dangerous.

And the risk is, with time, you might see some kind of dips in the roofline, cracked rafters, or worse, a complete structural failure.

Having a professional do a roof inspection before installation is the wisest choice. If the roof is weak and old, reinforce it first so it can withstand the weight of those panels easily.

Disrupted airflow

Most people don’t think about airflow when adding solar panels and that’s why it troubles them later.

Roofs are designed to breathe, when the air moves across the surface, it helps in keeping things dry. But when panels are installed too close, they can trap moisture underneath and that can lead to mold, rot, and soon weakening your structure. 

The fix is quite simple, you just need to focus on spacing. A properly installed solar panel system allows space for air to flow while making sure the panels are securely in place. 

Some installers use mounting brackets that lift panels just enough to prevent moisture buildup underneath them. So if you live in a humid area, it’s worth asking about extra ventilation options to keep your roof in top condition and also benefit from solar panels.

Water Drainage Issues

Solar panels are built to last but like any electrical system, they need to be installed and maintained properly. If we talk about the biggest risks then it would be faulty wiring, inverter malfunctions, or damage to the panels themselves.

But if something goes wrong, it can lead to overheating or in rare cases, fire. Most issues come from poor installation like if there’s a loose connection, it might not seem like a big deal but it can create resistance, generate heat, and become a hazard.

That’s why it’s important to have professionals do the installation.

You can do routine checkups too or have a licensed electrician inspect the wiring. This way you can make sure everything is secure and you can also spot small problems before they turn into expensive repairs. Some experts recommend thermal imaging scans to detect hotspots that aren’t visible to the naked eye.

Aside from professional inspection and routine check, you can do another thing and that’s keeping an eye on your inverter. If you notice that it’s making strange noises or shuts down unexpectedly, it’s a sign something’s not right.

Fire Hazards from Faulty Wiring

Solar panels do help in saving electricity but since they work on wiring too and if it’s not done right, you might end up facing some serious problem like faulty wiring. 

And with solar panels, bad wiring can lead to problems like overheating, short circuits, or in worst cases scenarios, fire. So if there are any loose connections or an inverter that’s working harder than it should, have it inspected by a professional.

A licensed electrician can spot issues early, tighten connections, and make sure everything’s done in the right way. It’s not just about keeping the system running, it’s also about keeping your home safe too.

Voiding of roofing warranties

It’s not that simple to spend money on a new roof just to void the warranty with a solar install. There are some manufacturers who refuse to cover any damage if panels are installed without their approval. 

Others even have strict rules about how the mounting system is attached and a lot of it comes down to the contractor too. If they drill through the wrong spot or skip sealing the bolts, you could end up with leaks down the road.

The best thing you can do is talk to both your roofer and solar installer before anything goes up, that way, you keep your warranty intact and prevent any extra hassles later.

Roof Damage During Panel Removal

When it comes to taking solar panels off a roof, it isn’t as simple as just undoing a few bolts, the process is much more complex. If it’s not done right, shingles can get torn, flashing can be damaged, and you might end up with holes in your roof. This is the worst way to make things expensive. 

And the best way to avoid that is by hiring pros who have knowledge and a great amount of expertise in handling the solar panels. Also, before installing the solar panels on your roof, have a roofer inspect the area, they can tell if your roof is ready for the installation or does it need to be prepared first. 

Conclusion

Solar panels can be a great investment but they work best when they’re installed in the right way and also maintained properly. A solid installation from an experienced crew is the first and crucial step, but keeping up with regular inspections is just as important.

It’s not just about making sure the panels are producing power, it’s also about keeping your roof in good shape for that to work. But small problems, like loose mounting points or cracked sealant, can turn into leaks if they’re ignored and not fixed on time.

The best way to avoid these small issues from becoming worse, you can do a quick yearly checkup, this can save you a whole lot of hassle and money on repairs. If you’re ever removing or replacing solar panels, always go with someone who has a great amount of experience in how to do it without leaving your roof looking like a mess.

If it’s done right, you can benefit from these solar panels as they csut on your energy bills and keep your home comfortable throughout the year. It’s important to give your roof some care too, if your roof stays as strong then you can enjoy your savings from these solar panels.

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Tom Parker

Tom Parker

Tom Parker is an experienced roofing specialist with over 10 years in the roofing industry. Alongside his hands-on work, he also freelances as a content writer, contributing his experience through writing articles for home decor magazines, such as Homes&Garden, TheSpruce, Hunker, Instructable. His research focuses on roofing solutions, trends, and DIY tips, helping homeowners and builders know about various roofing projects.

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About Tom Parker

Hooked Home

Tom Parker

Roofing Specialist & Freelance Content Writer

Tom Parker is an experienced roofing specialist with over 10 years in the roofing industry. Alongside his hands-on work, he also freelances as a content writer, contributing his experience through writing articles for home decor magazines, such as Homes&Garden, TheSpruce, Hunker, Instructable. His research focuses on roofing solutions, trends, and DIY tips, helping homeowners and builders know about various roofing projects.

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