I’ve tried both copper and zinc on my shed roof—honestly, neither one disappears into the shingles. The copper does get that greenish look after a while, which I kinda like, but it’s still pretty obvious. If you’re picky about looks, it’s a bit of a trade-off. And yeah, under big trees, algae’s gonna find a way no matter what metal you use... nature always wins a little.
Yeah, I hear you on the copper and zinc sticking out like a sore thumb. I tried the zinc strips on my garage roof last year—thought they’d blend in, but nope, they’re still shining away up there like a weird metallic eyebrow. Honestly, for what those strips cost, I almost wish algae would just win and give me a green roof... at least it’d be consistent. Under the big maple in my yard, nothing really keeps the moss away for long anyway. Sometimes I think the trees are in cahoots with the algae.
That’s the thing with zinc and copper—on paper, they’re supposed to be this low-key fix, but in reality, they’re pretty hard to miss. I tried copper wire once and it looked like I was trying to rig up a science experiment on my roof. Between the shade from trees and all the moisture, I’ve just accepted a little moss as part of the landscape. At least you gave it a shot—sometimes the “quick hacks” just don’t blend in as much as we hope.
Copper wire on the roof always makes me think of some mad scientist setup too. Honestly, with heavy shade and moisture, even the fancy algae-resistant shingles struggle. I’ve seen folks try everything from zinc strips to vinegar sprays—sometimes you just end up with “decorative” moss whether you like it or not.
Copper wire, zinc strips, vinegar—I've seen it all, and honestly, I get why folks keep trying new things. The “decorative” moss comment made me laugh because I’ve inspected more than a few roofs where the moss was so thick it looked intentional, like some kind of eco-roof experiment gone sideways.
I’ll admit, I’m a bit skeptical about the long-term effectiveness of those algae-resistant shingles, especially in spots with heavy shade and constant dampness. Manufacturers make big promises, but in practice, I’ve seen plenty of those shingles still end up with streaks and patches after a few years. The copper and zinc tricks do help, but only if you’ve got enough runoff and the strips are installed right at the ridge. Even then, it’s not a magic bullet—if your roof’s got a low pitch or there’s a lot of overhanging trees, you’re fighting an uphill battle.
One house I checked out last fall had a north-facing roof under a big old oak. The owner had tried everything—zinc strips, regular power washing, even some kind of enzyme cleaner. The moss just kept coming back. What finally made a difference was trimming back the branches to let in more sun and improve airflow. Not a quick fix, but it slowed the regrowth way more than any chemical or metal strip.
I know not everyone wants to start hacking away at their trees, but sometimes that’s the only thing that really works. I’m not saying don’t try the copper or zinc—just don’t expect miracles if your roof’s always in the shade and stays damp for days after it rains. Sometimes you just have to accept a little “character” on your shingles... or get used to regular maintenance.
Curious if anyone’s had luck with those newer spray-on treatments? I’ve seen mixed results, but maybe there’s something out there that actually holds up in the long run.