Will new solar panels mess up my old roof?

Had a similar issue myself - roof looked fine, but after installing panels, leaks popped up around the mounts. Ended up pulling the panels off, replacing shingles underneath, and reinstalling. Definitely worth inspecting closely beforehand to avoid extra hassle later...

Interesting, I've seen this happen a lot actually - roof seems totally solid until panels go up, then suddenly you've got leaks. Makes me wonder if it's partly due to the installation method or just hidden issues that were already there. Did your installer mention anything specific about the mounts or flashing they used? I've noticed some companies have different approaches, and some seem more leak-prone than others.

A buddy of mine had similar troubles, and when he finally got someone else to check it out, turns out the first installer had cut corners on the waterproofing around mounts. Once they redid that properly, no more leaks. Makes you think how much depends on who's doing the job rather than just roof age alone.

Were you able to pinpoint exactly what caused your leaks, like improper sealing or maybe just worn shingles failing under pressure? Curious how common this really is...

Had a similar issue myself. Roof was older but seemed fine until panels went on - then came the leaks. Turned out the installer skimped on flashing around mounts. Got it fixed by another company and hasn't leaked since. Definitely think you're onto something about installation quality playing a big role. Hopefully your situation is just a quick fix and not something major lurking underneath...

"Turned out the installer skimped on flashing around mounts."

Yeah, that's exactly what I've been wondering about lately - how much of the trouble is really about the panels themselves vs. how they're installed? Seems like a lot of these issues pop up when corners get cut during installation. Good to hear you got yours sorted without too much hassle. Hopefully the OP's roof just needs a bit of extra care rather than a full overhaul...

Yeah, honestly, the installation's usually the weak link - not the panels themselves. Had a similar issue on one of our properties where the installer rushed through sealing the mounts... ended up with leaks after just a few months. Once we got someone thorough to redo the flashing, problem solved. So I'd say focus more on vetting your installer carefully rather than worrying too much about panel quality alone.

"Had a similar issue on one of our properties where the installer rushed through sealing the mounts... ended up with leaks after just a few months."

Yeah, totally agree with this. Had a neighbor who went through something similar - panels were fine, but the installer skimped on waterproofing around the mounts. Ended up with water stains on their ceiling after the first heavy rain. Once they got someone who actually took their time and knew what they were doing, no more issues. Definitely worth spending extra time finding someone reliable rather than worrying too much about the panels themselves.

Had a similar experience myself - installer was a nice enough guy, but clearly had somewhere else to be that day. Couple months later, I'm staring at a suspicious brown spot on my ceiling thinking, "Hmm, pretty sure that's not supposed to be there..." Ended up having to redo the flashing and sealant around the mounts. Lesson learned: the panels rarely cause trouble, it's usually the rushed installation. Like you said:

"Definitely worth spending extra time finding someone reliable rather than worrying too much about the panels themselves."

Couldn't agree more.

Had a similar issue come up during an inspection last year. Homeowner had brand-new solar panels installed, and within weeks noticed water stains forming near the attic hatch. Turns out the installer rushed through sealing around the mounts - classic mistake. If you're getting panels, make sure to double-check the flashing and sealant yourself afterward...a few extra minutes poking around can save you from headaches down the road.

Had a similar thing happen at one of the properties I manage. Owner was super excited about going green, got panels installed, and boom - first heavy rainstorm, tenant calls me up saying there's a mini waterfall in the attic. Turns out the installers skipped proper flashing altogether (seriously?). Definitely agree it's worth poking around yourself afterward...or at least getting someone you trust to double-check. Roof leaks are sneaky little devils, and solar panels seem to give them extra hiding spots.

"Roof leaks are sneaky little devils, and solar panels seem to give them extra hiding spots."

Couldn't agree more. I've seen installations where the mounting brackets weren't sealed properly - water intrusion waiting to happen. Proper flashing and sealant application are critical; installers cutting corners is unfortunately common. Always worth a second look afterward...

I've seen installations where the mounting brackets weren't sealed properly - water intrusion waiting to happen. Proper flashing and sealant application are critical; installers cutting corners is ...

Yeah, sealing is key, but honestly, even with perfect flashing and sealant, older roofs can be tricky. If your shingles are already brittle or near the end of their lifespan, solar panels might just speed things along... Better to assess roof condition first, then install.

"Better to assess roof condition first, then install."

Exactly this. I've had a few clients insist on installing solar panels over roofs that were already past their prime - against my advice. Sure enough, within a couple years, we were back up there removing the panels for a full reroof. It's not just about sealing brackets; it's about the structural integrity and lifespan of your roofing materials. Always better to replace or repair first, then go solar. Saves headaches and money in the long run...

That's a great point - seen it happen myself.

"within a couple years, we were back up there removing the panels for a full reroof."

Always seems like people underestimate how much hassle (and extra cost) panel removal and reinstall can be. Curious though, has anyone here had experience with partial roof repairs or spot fixes under solar panels? Wonder if that's ever a viable option or just delaying the inevitable...

I've seen a few cases where homeowners tried spot repairs under panels, and honestly, it's usually just kicking the can down the road. Had one client who patched a leak near the edge of their solar array - worked fine for about a year, then water found another way in. Ended up pulling panels anyway. If your roof's already older, partial fixes might buy you some time, but eventually you're probably looking at a full reroof. Better to bite the bullet early if you can swing it.

I get your point, but I wouldn't completely rule out spot repairs under solar panels. I've seen cases where targeted fixes actually held up pretty well - especially if the leak is isolated and the roof isn't totally shot yet. The key is doing a thorough inspection first: check flashing, seals, and shingles around the array carefully. If everything else looks solid, a careful patch can sometimes buy you several years. It's not always just delaying the inevitable...depends a lot on the roof's overall condition and how well the repair is done.

"If everything else looks solid, a careful patch can sometimes buy you several years."

I get where you're coming from, and yeah, spot repairs can work short-term. But honestly, if you're already investing in solar panels - which aren't exactly cheap - why risk it? I've seen roofs that looked okay at first glance but had hidden issues underneath. Once those panels go up, even minor leaks or moisture can turn into a real headache down the road.

A few years back, my neighbor did exactly what you're suggesting. Patched a small leak, installed panels thinking he was good to go. Two winters later he was pulling them all off again because the leak came back worse and spread under the array. Cost him way more in the end than just getting the roof replaced upfront.

Not saying spot repairs never work...but it's definitely rolling the dice. If your roof has age on it already, I'd seriously consider biting the bullet and getting a new one before installing solar. Just saves hassle later on.

I hear your concerns, but I'd say it's not always that straightforward.

"Two winters later he was pulling them all off again because the leak came back worse and spread under the array."

That's definitely a nightmare scenario, but it also depends heavily on the initial inspection and quality of the repair. I've worked on roofs where targeted repairs - done thoroughly and with proper materials - held up perfectly fine under solar for years. Not every roof showing age necessarily needs a full replacement right away.

The key is having someone experienced really assess what's going on underneath: checking sheathing, ventilation, flashing details...the whole nine yards. If that's done properly, a patch isn't necessarily "rolling the dice," it's more about calculated risk management.

Of course, if budget allows and peace of mind is a priority, replacing the roof upfront makes total sense. But just wanted to point out that careful spot repairs aren't always destined for disaster - they can be effective longer-term solutions when done right.

Yeah, I've seen patch jobs hold up fine too, but honestly it can be a gamble. My neighbor had panels installed after a small repair and it's been solid for at least 5 years now. But then again, he had someone really thorough do the inspection beforehand. Makes me wonder though, does anyone know if solar companies typically warranty their work if leaks pop up later on? Seems like that'd be worth knowing upfront...

Most reputable solar companies I've dealt with do offer warranties covering leaks or roof damage caused by their installation. Usually, it's around 5-10 years, but it varies a lot between companies. Definitely worth asking upfront and getting it in writing. I've seen cases where homeowners assumed coverage and ended up footing the bill later... not fun. Also, make sure your roof's in decent shape beforehand - no warranty covers pre-existing issues.

"Definitely worth asking upfront and getting it in writing."

Agreed, always smart advice. Still, warranties can be tricky - I've seen too many cases where companies try to dodge responsibility by claiming the damage was pre-existing or due to "weather events." Makes me wonder: has anyone here actually had success filing a claim under these warranties, or is it mostly just peace-of-mind marketing? Curious to hear real experiences...