I’ve been repairing a roof this week where i have already been up before to try and solve. It is a concrete tile roof where a small tenement comes of the main roof and butts up against the main house. Now i noticed the ridge tiles where they butted up originally had a small gap so i over did and cemented everything. This was fine for a time but then over Christmas on a certain blowy day it decided to drip in one night through a ceiling but to add after that day even it there was rain about it didn’t happen again, however it needed to be solved.
In the roof space it had the old black thick brittle felt so in some of the existing tears i fished my hand up to have a feel about and found all the battens in the vicinity were rotten.
Time to strip the roof and repair. All done now and problem solved. What i think was happening because the battens were so rotten they were not keeping the tiles in place correctly so on a blowy day they were being lifted up for the rain to blow in under.. Again would only happen when the rain was driving in horizontally but had obviously been a problem for a long time considering how the wood was effected..
If you have any roof leak problems comment here..