That’s kind of what I was worried about with the zinc strips. I’ve got a bunch of big maples shading my place and it just seems like moss is always coming back, no matter what I try. Have you ever thought about those moss-killer sprays? I keep seeing them at the hardware store, but I’m not sure if they’re any better or just another temporary fix. The soft brush idea sounds safer than scraping, though—my roof’s only a few years old and I’d hate to mess it up just trying to clean it.
The soft brush idea sounds safer than scraping, though—my roof’s only a few years old and I’d hate to mess it up just trying to clean it.
Honestly, the soft brush method is probably your safest bet if you’re set on DIY. I get the hesitation with moss-killer sprays—they work for a while, but in my experience, they don’t stop it coming back, especially under big shade trees. Those sprays can also leave a residue that isn’t great for your gutters or plants if you’re not careful.
What I’ve seen go wrong is when folks try to “scrub” with too much elbow grease or use a pressure washer. Even with a new roof, you can knock off granules or lift shingles just enough for water to sneak in later. Not worth it.
If you’re dealing with constant shade, you might be fighting an uphill battle no matter what product you use. Sometimes the most realistic approach is to stay on top of light cleaning every year and accept a little green here and there. If it ever gets out of hand, that’s when I’d consider calling in a pro before risking damage—or at least get someone to check that the moss isn’t hiding bigger issues underneath.
Had a similar situation a few years back—north side of my house never gets sun, so moss loves it. I tried the soft brush and it worked fine, but I got a little carried away near the ridge and ended up loosening a shingle. Didn’t notice until the next rain, and then... well, let’s just say I learned my lesson. Now I just do a gentle sweep once a year and call it good. Sometimes you’ve gotta accept a bit of green if you want your roof to last.
Sometimes you’ve gotta accept a bit of green if you want your roof to last.
Honestly, I’m starting to think moss is just part of the “homeowner starter kit.” My first attempt at scrubbing it off was… let’s say, enthusiastic. Did you ever try one of those moss sprays? I’m tempted, but nervous about what it might do to the shingles.
Moss is like that uninvited guest who just won’t leave—especially if you’ve got north-facing slopes or a lot of shade. I’ve seen those moss sprays work, but you’re right to be cautious. Some of them are pretty harsh and can actually eat away at your shingles if you’re not careful. Honestly, gentle scrubbing with a soft brush and a diluted solution (something like 50/50 water and bleach) is usually safer, but it’s a pain to do, especially on a steep roof. I tried going full DIY once and nearly slid off—10/10 would not recommend for the faint of heart. If you’re nervous about damaging the roof, sometimes it’s worth calling in a pro, at least for the first go-round.