Bleach will do the trick, but the runoff may damage painted surfaces
and unpainted wood and nearby landscaping.
On wood surfaces, I use a vinegar/borax solution. It works more
slowly, but does the job, and doesn't harm the wood like chlorine
bleach can. Put some 5% white distilled vinegar into a quart
container (like a juice bottle) and add as much borax as will dissolve.
Then carefully pour the liquid into a hand sprayer, being very careful
not to get any undissolved borax into the sprayer (it will clog the
Does anyone know if RoundUp will kill moss?
Moss will shorten the life of your roof. I would suggest that you get a
zinc strip and install it at the top of the roof line. These strips will
last many years, but they can be spendy for a large roof.
There are products that you can sprinkle on the the roof to rid you of the
moss. These are safe and work well. They contain iron and zinc and will
kill off the moss for now, but dollars to do-nuts, it will be back over
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.