Rally-Ma

Hi all, I am layouting my plans now before sending them in to the permit office. I noticed that my kitchen roof is lower than the extension on the other side of the house. I need them to be on the same height and then sloping downwards. Nothing happens when I change the values for Kitchens structure. Why is that? I´d be really happy for some kind of input here. Working in Home designer Pro. raising the kitchens roof.plan