Tiled roof maintenance

[Master of None]

I have recently had dry ridge, dry verge and soffit etc.
Upon inspection there was a very thick covering of moss over most of the roof.
I decided to jet wash it clean, I know I should not have but after 40 years the tile coating was long gone anyway.
Now I basically have bear concrete tiles.
Is there any treatment I can apply to remedy this? or is it even a problem?
Also is there any thing I can do to stop the moss coming back, I am at an age now that that is probably my last venture onto my roof.
I have read about copper tape that can be applied just under the ridge, does this work?

Thank you.

 

[Master of None]

Please hep guys, as you can see from my stats i have contributed in the past.

 

[robinbanks]

Also is there any thing I can do to stop the moss coming back

Some related discussion here: https://www.diynot.com/diy/threads/dry-ridge-system-and-extra-works.604447/#post-5399804

 

[datarebal]

you will never stop moss or lichen.. no product lasts for ever

 

[Old Salt]

Noticed on roofs locally that those with a dormer window with some lead flashing underneath have very little moss on the area of the roof below the dormer. Not sure whether that is generally true or not.

 

[noseall]

you will never stop moss or lichen.. no product lasts for ever

Clays fare better than granular conc's though.