Can Not Get Roof to Build Correctly

[RyanSam]

We only have about 1-month of experience working in Chief Architect Professional.  We have the house built the way we want it, including the 2nd story.  However, the roof will not build.  I've adjusted heights of different rooms and segments of the house to match closely and where I think a roof should build pretty easy and can not get it to work.  

 

Can you point me to the right tutorials and or advise on how to proceed.  

 

Also, pointers for door sizes (general size pdf ect.) and window size especially arched windows for like a breakfast area where you plan on having 3 arched windows in a half hexagon cut.  Sorry I don't know the official terms hopefully that makes sense.  

 

Thanks, 

Ryan