On Sun, 7 Feb 2021 03:42:33 -0800 (PST), fred
wrote:

On Sunday, February 7, 2021 at 10:35:55 AM UTC, AnthonyL wrote:
Over the past year or so quite a lot of moss has grown on my garage=20
roof. It is pretty much a very big sponge.=20
=20
I've had some success by shovelling a few spades at a time into a big=20
container full of water and then gently fishing out the moss with a=20
rake. But that's nowhere near 100% effective.=20
=20
Ideas and what should I do next?=20
=20
--=20
AnthonyL=20
=20
Why ever wait to finish a job before starting the next?

Sprinkle it with bioligical washing powser. I did find an alternative liqui=
d solution which I also found effective on our drive . Label reads " Bac 50=
" from R&D Laboratories Ltd., Unit U, Enkalon Ind. Est., Antrim BT41 4LJ

Apparently it is C10-C16 Alkyl Dimethyl Benzyl Ammonium Chloride (50%) Per=
haps you could run some up yourself.

So far it is just as effective as the biological washing powder but perhaps=
easier spread. (Diluted and sprayed with a garden pressure sprayer.) Prior=
to this the washing powder was the only effective solution I could find. L=
asted a few years. All other 'Moss Solution' products were useless. They re=
quired the removal of the dead moss. I found it very hard to shift even wit=
h a Stihl power brush attachment on their split boom system and using a spa=
de threatened damage to the tarmac on the drive,

Are either safe for wildlife, eg birds, squirrels?


--
AnthonyL

Why ever wait to finish a job before starting the next?