Yeah, moss is like that one guest who never leaves the party—annoying, stubborn, and always coming back for more. I’ve seen it wedge under shingles and make a mess of things, especially on those north-facing slopes that never see the sun. Zinc strips are decent, but honestly, if you’ve got big firs or maples overhead, you’re just slowing it down. I’ve had clients swear by gentle brushing every spring, but it’s a yearly ritual around here. Sometimes I wonder if we should just start selling “moss-friendly” roofs and call it a day...
I keep hearing about moss being this never-ending headache, and I’m starting to get why. We moved in last fall and already I’m seeing fuzzy green patches on the north side of the roof—classic, right? Ours is asphalt shingles, lots of shade from a big cedar tree, and I guess that’s just asking for trouble. I read about zinc strips too, but like you said, seems more like slowing things down than solving it.
Curious if anyone’s tried those newer “moss-resistant” shingles or coatings? Are they actually worth it or just marketing fluff? Also, is power washing really as bad as some folks say? My neighbor swears by it every couple years, but I’ve read it can damage the shingles. At this point, I’m half tempted to just embrace the mossy look and call it “Pacific Northwest charm,” but my insurance company might not agree...
How much does the type of tree overhead really matter? Wondering if it’s just a losing battle unless you cut everything back.
At this point, I’m half tempted to just embrace the mossy look and call it “Pacific Northwest charm,” but my insurance company might not agree...
Totally get where you’re coming from. I’ve got a big fir tree shading my roof and the north side is always the first to go green. The tree type does matter—cedars and firs drop a lot of debris, which holds moisture and gives moss a foothold. I trimmed back some branches last year and it helped a bit, but didn’t solve it.
I tried one of those “moss-resistant” shingle sprays a couple years ago. Honestly, it slowed things down for a season, but didn’t stop it. I think the coatings are more of a band-aid unless you can get more sun on the roof.
As for power washing, I’d be careful. My neighbor did it and ended up with granules all over his gutters. It looks clean at first, but you’re basically blasting away the protective layer on the shingles. I use a soft brush and moss killer instead—takes longer, but less risk.
If you can live with a little moss, that’s probably the most realistic approach around here... unless you want to cut down every tree in sight, which isn’t really an option for most of us.
That “Pacific Northwest charm” line made me laugh—my place could win a prize for most creative moss patterns. I’ve tried a bunch of things over the years, and honestly, nothing is a total fix. Here’s what’s worked best for me:
First, I rake off loose debris every couple months, especially after storms. I use one of those long-handled roof rakes so I don’t have to climb up there as much. Then, in early spring, I’ll go up (carefully) with a soft brush and gently loosen any moss patches. The trick is not to scrub too hard—learned that the hard way when I took off some shingle grit.
I do use a moss killer, but only the kind that’s safe for plants and pets. The zinc strips along the ridge seem to help too, though they’re not magic. Trimming back overhanging branches helps a bit, but like you said, unless you want to live in a bald yard, there’s only so much you can do.
I’ve given up on perfection. A little green is just part of life here... as long as it doesn’t start lifting shingles or causing leaks, I’m calling it “character.”
Yeah, I hear you on the “character” thing—sometimes it feels like moss is just part of the deal around here. I’ve seen folks go overboard trying to keep their roofs spotless, but honestly, a little green isn’t the end of the world. You’re right about not scrubbing too hard; I’ve watched people take years off their shingles that way. Zinc strips help a bit, but I’ve never seen them totally stop moss either. Sounds like you’ve got a good balance—maintenance without driving yourself nuts.