Clearing roof mess: DIY or hire a pro?

Still, nothing beats a good old-fashioned brush and some elbow grease... just wish my knees agreed.

Man, I feel you on the knees. After a couple weekends up there, I started looking at those pro quotes a little differently. I’ve seen copper work better than zinc too, but honestly, nothing seems to keep the moss away for long in our weather. Those algae-resistant shingles are nice, but yeah, the sticker shock is real. I usually end up budgeting for a pro cleaning every other year - less wear and tear on me and the roof.

I hear you on the pro cleaning route. After managing a few buildings with steep roofs, I just can’t justify the risk or the time anymore - especially when the moss comes back no matter what I try. Copper strips helped a bit, but it’s not magic. Those algae-resistant shingles are tempting, but yeah, the price tag stings. For me, paying for a good cleaning every couple years keeps the roof warranty happy and my knees out of trouble. Sometimes DIY just isn’t worth it.

Copper strips helped a bit, but it’s not magic.

That’s the truth - copper strips slow moss down, but they won’t stop it in its tracks, especially in rainy zones. I’ve seen folks try everything from homemade sprays to pressure washing (which can actually void your shingle warranty). Steep roofs are another story - unless you’re part mountain goat, it’s just not worth risking a tumble. Paying for a pro cleaning every couple years is honestly the safest bet for most people, and like you said, keeps that warranty intact. If you ever do go DIY, please skip the bleach mixes… they’re rough on plants and shingles alike.

You nailed it - copper strips are more of a speed bump than a brick wall for moss, especially where it rains all the time. I’ve seen people get way too confident with pressure washers, and then wonder why their shingles look worse after. The warranty angle is huge; folks forget that one bad move can cost them big down the road. Paying for pros isn’t cheap, but neither is a hospital bill or a new roof. DIY has its place, but sometimes it’s just not worth the risk, especially if you’re dealing with a steep pitch or old shingles.

Paying for pros isn’t cheap, but neither is a hospital bill or a new roof. DIY has its place, but sometimes it’s just not worth the risk, especially if you’re dealing with a steep pitch or old shingles.

Couldn’t agree more about the “hospital bill” part - my uncle tried to clean his own mossy roof last year and ended up with more bruises than clean shingles. If your roof’s got some age or it’s steeper than your average rollercoaster, I’d step back and let the pros handle it. For lower pitches and newer shingles, I’ve had luck with a soft brush and garden hose, but pressure washers are like giving your roof a sandblasting it never asked for. Just my two cents from being the family’s designated “roof monkey.”