Hi all, new to the site, I’m having a flat roof extension added to my bungalow, the roof covering is a warm roof with epdm rubber, the flat roof will join onto a sloped roof and also a hipped roof on one side, my question is does anyone have any images of this detail in a actual picture or experience themselves how it was done ? 
 

Needs to be fully water proof with no rain to able to enter the back of the flat roof where the hip sits on top of you like, funnily enough my neighbour has practically the same but with a older roof covering and lots of layered lead flashing making water tight (doesn’t look pretty but might be only option) hope it makes sense lol I’ll add some pics of what I mean 👍🏼

 

cheers 

I’m referring to the the hip section detail where the flat roof meets the hip