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
cleaning pitch/bitumen of brickwork
Oct 22, 2005
5 Replies
Petrol but messy, have you tried burning it off?
-- Sir Benjamin Middlethwaite
Unfortunately it is near to upvc fascias so burning out of question. I will try petrol. Thanks for reply Neil
Paraffin is the solvent of choice. Petrol works but has its downsides.
NT
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.
Thanks. I will try to get some spray and let you know if it works. Neil
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