Roof tile jointing - leak

Legacy_user

Hello Folks,

Buying a house which has damp walls in bedrooms along adjoining walls with neighbours. Has had new gutters so don’t think this is the issue. I think it is coming from the roof pitch as clearly both houses have been re roofed at different times. The roof tiles are not a continuous span from this house to the neighbours as per two houses which were re roofed at same time. Instead there is an obvious joint. Both terracotta, both same size and style, but an obvious joint as were not done at same time. No obvious overlap. So I think the leak is somewhere along the pitch and water is running down the timbers to the walls where the damp is showing internally.

What would you recommend as a fix; pointing the gap, flashing, GRP overlay or roof jointing. This must be a common issue but what is the usual, or most cost effective fix?

Thanks

G_M

Does each roof pitch drop down to meet the other in a gulley? If so there should be lead flashing in the valley beneath each roofs bottom tiles. Or special interlocking tiles like these:

System

G_M,

Apologies, it is a terraced house, no gulley, just one of a row of terraced houses.

Thanks

G_M

Sothe roofs are one continuous pitch?



You'll need to talk to neighbour, and 2or 3 roofers.


If neighbour is amicable (invite to tea and bake a cake!) the you can get work done on the roof boundaries. If not, you'll need to go down the Party Wall Act route.


As for the best solution, first show the roofers the damp inside, and then up top, so they can get an idea where the problem originates. See what they recomend and at what price.