Hi all
For the regulars, the extension re-work currently under way includes replacing a flat felt roof with dual pitched tiled alternative. The problem I have is that there are a number of bricks covered in the tarry remnants from the old roof sealing attempts. These will be exposed due to the angle of the roof and the reduced height of the angled flashing. Is there a cleaning product that will remove this gunk from the surface of textured brick facings?
TIA
Phil