How is this possible?

Hi all. This site has helped me out in the past from just reading the forums, so thanks for that.
I now have an issue with my L-shaped roof. Granted it's odd but this section is my main concern. In order to get the soffits the range length we went for a bit of a flat roof and as I've got an approx 45 degree section in the corner it caused an issue. Sorted design wise however now the roofer, or Tiler, has done what's in the picture. The valleys aren't parallel and don't end at the corners. An I right in thinking its a rubbish job?
Appreciate all comments. Ta.

IMHO there's something wrong with the geometry of the roof. Because the sides are not equal there is no scope for 45degree cuts or even equal angles on the 2 sides. I am not a roofer but if it were my house I would try and make a feature out of it by putting in a skylight and finishing around it with a crimped zinc roof surface (or a GRP copy thereof) and a neat flashing onto the tiles.

Crap job I'm afraid. I suspect the design hasn't been though out properly, and then the roofer has just started the job, and fudged the solution. The tiles that have been used would require the same distance at the front of the wall, and the back of the roof, but the impression of the picture suggest that the roof section is wider at the back, than the wall in the front. hence the valleys don't run down properly to front wall where it turns back on the right hand side. You've used the same tiles as the roof, but I'm not sure if they are suitable for the extension roof. The valleys are far too wide, and looking at the picture, if I didn't know better, it looks as though the roofers taken an angle grinder to the tiles in the middle section to make them parallel to the side returns. Did building control pass it.

Hi.
Building control aren't bothered - so long as it's structurally sound and does its job they aren't bothered about cosmetics. He didn't want to get involved.
The roof was of a traditional build not truss. So yes it was a bit of a design as we go. The architect hadn't thought the roof out properly and was in the Bahamas at the time!
Anyhow, the building contractor agreed the section was poorly executed. It didn't help that the timbers weren't at the same height. All sorted now. Had I known that that feature wall would have caused so much grief I wouldn't have added it.
Top tip - use a good architect!

Thanks for the replies.View attachment 83837 View attachment 83837