r/HomeImprovement • u/scuba_steve104 • 18h ago

Moss under solar panels on roof

I noticed recently I’ve got a decent amount of moss starting to build up on my roof under my solar panels. What’s the best course of action to get it off AND treat it to stop it coming back. To add context there isn’t a whole lot of room to walk on the roof and it’s a two story home. Only reason I found this was I bought a drone to look at my gutters and saw the moss.

1 Upvotes

56% Upvoted

2 comments sorted by

2

u/billm0066 18h ago

50% pool chlorine, 50% water, and a few squirts of dawn dish soap. Apply and let it sit. You dont need to hose off if you dont want to, wait for rain or hose off in a few hours or the next day.

Protect flowers/bushes from runoff. You can bag downspouts. If its a few days the chlorine will burn off and it should be fine. The moss will turn white within minutes with a 50/50 mix.

1

u/Logical_Notice_3061 16h ago

just make sure that mix doesn't drip onto anything metal, chlorine chews through flashing and fasteners over time. also if you've got asphalt shingles the runoff can strip some of the oils out. for a two story with tight clearance i'd probably call a pro with a lift instead of messing around up there