Recent content by JoolsUK

Actually the slate bond does hold just fine. The problem is as I have stated in my intro. If what you said was true, the roof would leak with every rainfall. But it doesn't, only in a heavy downpour. Thanks anyway.

Thank you. With the greatest of respect, as I said I am looking for a temporary solution rather than being told something that I already know : that the existing arrangement is far from optimal. Thank you anyway.

Yes thank you. As I said in my intro, I KNOW the relaying of felt is the ultimate solution. But that isn't possible right now. As I said what I am looking for is a temporary solution. I know the original workmanship is bodged. but knowing that doesn't help me much right now.

I have a valley/butterfly roof with a felt lined central gutter (pictured below). The gutter relies on a bitumen mastic seal between the felt and the lowest tiles. Pretty predictably, this keeps failing. In heavy rain, water rises above the level of the first tile and water ingresses into the...