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There's a house opposite us that has those angled tiles and mortar in lieu of flashing. I always thought it seemed like a bit of a bodge for the expandy contracty reasons. I was looking at it just this morning as it goes. We got our flashing replaced and the parapet wall re-rendered. The flashing was originally stepped along the brick line with no render. But the bricks were starting to crumble so the whole thing got new, straight flashing and render.
stevo_com
Speaking of which, chimney and flat roof have been renovated (or, in the case of the chimney, mostly rebuilt).
On to the pitched roof on the front.
There is a botch job on it at the moment where the roof meets the side walls. Angled tiles have been concreted down to act as flashing. Apparently they have soakers beneath them. They kind of work...but the cement is cracking where the roof expands and contracts with the temperature.
Roofer reckons we could get away without taking them all up and replacing with a proper lead flashing and new tiles. First suggested just sealing the cracks. I dislike any serious work being solved with sealant, so he's now suggesting we just re-flash where the cement has failed.
I don't like the sound of this either. But I get the whole not broke don't fix it thing. and it's £4k to get it all taken up and flashed properly, and it's more time with a scaffold on our house. But I have the money, and I hate things not being quite right, or the idea that the cement will fail further down requiring more roof works later on.
What would the hive mind do?