JohnBishop

@dpmiller @Dave Jones @Carrerahill @Russell griffiths Thank you for your suggestions I reckon I get rid off the ropey ridge on the other side as well as this will leak there too. I think they haven't done a good job around chimney as well what would explain the damp on the chimney wall.

Yes, it's newer than the neighbour's but the ridge bit needs doing. What is this black residue under his roof, is it from the water exposure, an overflowing gutter? This is northern side so the green stuff can be justified. His roof could be leaking in few places. I think chimney also needs an inspection.

Hi All, There are leaks on the shared wall and after looking on the outside I think the rain water seeps from the neighbouring roof I think it's flatter than mine and some water makes its way under my tiles. Something is not right. There are also some leaks into the chimney. I think this also needs doing. Please advise. Best regards