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I need some advice on what I hope is an unusual situation - at least I hope few others are victims to such shoddy workmanship. You'll see from the picture below that the junction at the bottom of the roof tiles is the wrong way round - the liquid applied waterproofing on the flat roof runs up and over the tiles, not under them. Can you guess where the water goes? Yep, it runs off the tiles and goes behind the waterproofing and is causing an internal leak. We're left with this issue and cannot get the installers back to remedy it (don't ask!).
What are my options here? I know the correct installation would see the tiles sit over the liquid applied waterproofing so the water runs off correctly, but this might be tricky here. Ideally we would like to avoid taking off all the tiles, and avoid scaffolding four floors up if possible (perhaps unlikely).
Is there a way of propping up the bottom tile and re-doing the bitumen? Is there a filler/foam? What other approaches are there? I'd be enormously grateful for advice here before asking roofers for quotes.
What are my options here? I know the correct installation would see the tiles sit over the liquid applied waterproofing so the water runs off correctly, but this might be tricky here. Ideally we would like to avoid taking off all the tiles, and avoid scaffolding four floors up if possible (perhaps unlikely).
Is there a way of propping up the bottom tile and re-doing the bitumen? Is there a filler/foam? What other approaches are there? I'd be enormously grateful for advice here before asking roofers for quotes.