cleaning pitch/bitumen of brickwork

[Neil]

I have just taken down a flat roof and replaced with traditional roof. In places some pitch or bitumen from the old roof is showing on the brickwork. Can any one recommend a way of cleaning it off. I have removed most with a scraper but some is still being obstinate. I am unsure what type of solvent if any will do the job. Thanks for any help. Neil

[The3rd Earl Of Derby]

Petrol but messy, have you tried burning it off?

-- Sir Benjamin Middlethwaite

[Neil]

Unfortunately it is near to upvc fascias so burning out of question. I will try petrol. Thanks for reply Neil

[meow2222]

Paraffin is the solvent of choice. Petrol works but has its downsides.

NT

[Mr Fuxit]

Any solvent that will dissolve the bitumen will carry the bitumen further into the bricks, causing irremedial staining. Try a "freezer spray"(as used by plumbers) to chill the bitumen to a temperature at which it will powder when brushed.

[Neil]

Thanks. I will try to get some spray and let you know if it works. Neil