Roof set to a low pitch. @domesticsurveys

Very Well spoken roofer!😂

Having the main roof drain onto it is probably not a good idea.

Interesting and informative video. My father has a similar problem.

Just an idea,maybe do a voice over the vid.rather than a vid with wind. Also it seems the pitch is too shallow for either tiles or slate. Felt would be my go to.

My building fitted the roof on our extension at too shallow a pitch, I had the back to redo it which they did, but of course internally it looks a mess around the roof lights.

My next door neighbour had a small extension put on the side of his house @5 years ago. The roof pitch was clearly inadequate - when the builder was up there I asked him what it was - he said "somewhere between 6 and 10 degrees" so he clearly didn't know. At this stage I should declare my job means I know about these things. I warned my neighbour but he said he trusted his builder implicitly. Every year he gets water ingress and his builder has stopped returning his calls..........

Not enough roof slope is a big problem .as a roofer it can be cured with 4.2s and new batton .at a cost

It must have passed funal council inspection ????

2 fixes both not expensive compared with a new roof.
1. Reroute the down pipe from the main roof so all that water does not flow over the lower roof.
2. Remove the tiles and install a heavy duty felt then refit the tiles, that will make sure that if any rain back flows under the tiles it still does not end up into the inner roof/ceiling below.

At that pitch it looks like the tiles are basically horizontal 😂 IMO looks like the membrane was doing the heavy lifting and it finally broke

What tiles are they on that roof? Are mendip tiles? We have aame issue and wonder what tiles to go for....