Rick wrote:
We have 600+ roof slates, with patches of tar on them. We can get most
off with a scraper, but have some stubbon bits. Any ideas how I can
get 400 of them clean?

Very good solvent based tar removers are available, Screwfix do one, but
their site is down so I can't paste a link.


--
Dave
The Medway Handyman
www.medwayhandyman.co.uk
01634 717930
07850 597257