On 4 Mar, 19:24, "The Medway Handyman" davidl...@no-spam-
blueyonder.co.uk wrote:

I have, did my garage roof 10 years ago, *No surface damage whatsoever.

How old were the sheets? Do it on fairly new stuff and no doubt it
would be fine. Mine is maybe 50+ years old, and it'll shed fibres if
you shout loudly at it.