Copper strips are a mixed bag in my book. I’ve seen ‘em slow down moss a bit, but in our climate (I’m up in the PNW too), they just can’t keep up with all the moisture. Folks sometimes expect a miracle, but it’s really more about keeping debris off and staying on top of cleaning. And yeah, flashing is sneaky—one tiny spot missed and suddenly you’re dealing with ceiling stains or worse. Been there more than once...
I tried the copper strips on my place last fall—honestly, I was hoping for a bigger difference. Moss still crept back after a couple months, especially on the north side where it never really dries out. I’m not convinced they’re worth the hype, at least around here. Ended up spending more time up there with a broom than I expected. And yeah, flashing... I thought I could just patch a corner myself, but missed a tiny gap and wound up with a damp spot in the guest room ceiling. Lesson learned: sometimes DIY is more headache than it’s worth.
Copper strips are one of those things that sound great in theory, but in practice... yeah, not always a miracle cure, especially if you’ve got heavy shade or a north-facing roof. Moss is stubborn stuff. I’ve seen folks spend a weekend up there scrubbing, only for it to creep back by spring. And flashing—man, even the tiniest gap can turn into a real headache. I get the appeal of DIY, but sometimes chasing leaks feels like playing whack-a-mole. Some jobs just aren’t worth the stress (or the soggy ceilings).
sometimes chasing leaks feels like playing whack-a-mole. Some jobs just aren’t worth the stress (or the soggy ceilings).
That whack-a-mole feeling is way too real. I thought I’d be clever and tackle my own moss problem last fall—north-facing roof, lots of trees, so it’s basically a spa day for moss up there. I read all about copper strips and figured, “How hard can it be?” Well, after a Saturday balancing on a ladder with a drill in one hand and a strip of copper in the other, I realized the answer: harder than YouTube makes it look.
The thing is, the moss did die back a bit, but not everywhere. The shaded corners just laughed at my efforts. By spring, it was like I’d never bothered. And then there’s the flashing... I tried patching a tiny gap myself with some sealant. Looked fine until the next big rainstorm, when water found its way in anyway. Ended up with a brown spot on my ceiling and a lot of regret.
I get why people want to DIY—costs add up fast if you call in pros for every little thing. But after that mess, I’m starting to think some jobs are better left to folks who do this every day. Especially anything involving heights or potential leaks. My neighbor tried to fix his own flashing last year and wound up slipping off the roof (he’s fine, but his pride took a hit).
If you’re dealing with heavy shade or an older roof, those “miracle” solutions don’t always cut it. Sometimes it’s just ongoing maintenance or biting the bullet and hiring someone who knows what they’re doing. At least then you can blame them if your ceiling gets soggy...
I hear you on the copper strips—those things seem like magic on paper, but real life isn’t quite so tidy. I tried scrubbing moss off my parents’ old composite shingles last year (Pacific Northwest, so it’s a green carpet up there half the year). Even after a couple weekends and a “safe” moss killer, it just came right back in the shady spots.
Honestly, patching flashing is where I draw the line too. It’s one thing to sweep debris or clear gutters, but once water’s getting in, the stakes feel way higher. I’ve seen how a tiny missed spot can turn into ceiling stains or, worse, rot. Sometimes paying for a pro is just buying peace of mind… and keeping your Saturday afternoons dry.