posted 2 months ago
Well....
While it won't help an already damaged roof, , a broad copper ridgecap (that is raw copper with no sealants!) helps inhibit moss growth, Ditto for galvanized.....
For some reason many jurisdictions have outlawed these proven solutions and perhaps there will be unfortunate consequences in flower borders, a horticulturist might have answers.
Nothing is foolproof to a sufficiently patient fool!
I hate people who use big words just to make themselves look perspicacious.