@NaviMidnaFi
From what I can see in your pics, it looks like the eaves have been pulled back as far as they can go and that is what is causing the gaps along the roof line. You may have done that or they may have retracted on their own when you applied the frieze, so the frieze doesn't show through the roof. Those friezes do that depending on the roof type and slope and which frieze you use as well as how far the eaves are extended. So, you can try adjusting the roof angle and pulling the eaves out. You could also try changing the frieze to something smaller or just deleting sections in some places where you can't really see the frieze due to the roof anyway if you have the eaves extended. You can delete sections of it using the Alt or Ctrl key (I forget which it is atm) with the hammer tool if you don't already know.
Another thing I see is in the picture with the roofs down. You have no ceilings in those rooms so you might want to add them.
Hope this helps.