Problem getting hip roof over porch to join with gull wing roof

[moosgang]

I am trying to get Home Designer Suite 2015 to build a hip roof over a porch that is attached to a gull wing roof over my cabin (goal = pic with green roof).  The best I can get is shown in pic titled "roof trial" (the pic with flatter roof" and "roof trial2" the pic with almost perfect roof. The wall settings are the same for both:

• Cabin East and West walls: nothing checked at the top. Lower Pitch 4/12, Upper Pitch 11/12 (12" from baseline), Overhang 18".  
• Cabin South and North walls: Full Gable checked.
• Wall break where porch begins
• Porch East and west walls: nothing checked at the top. Pitch 4/12
• Porch North wall: nothing checked at the top. Pitch 2.5/12

 

Roof Trial 1 problem:  The roof build by Home Designer is trying to combine both roof into 1.  I tried removing the overhang on the North wall, but that didn't help.

To fix this problem I attempted to help the roof creator to separate the roofs by separating the porch and cabin.  I pulled the east and west porch walls back 18" and connected them with another wall with "full gable" checked.

 

As you can see in "Roof Trial 2", the roof pitch settings are correct to get the affect I want, however another roof section has been created over the foundation between the 2 "rooms" and there is not a wall showing on the gable.

 

[LawB10]

Undo everything you did after that, build a second floor, gable the front and back and use a 12" pitch and then lower the room

to 12" or less. for the Porch lower the roof pitch to 3" or less for all rails, do the same for the four walls.

 

[moosgang]

Thankyou, LawB10.  OK, I am attaching my plan file this time.  

So I did what I understood you to be saying:

1. Went back to Roof Trial 1
2. Added a second floor (to just the cabin area, not porch).  Dropped rough ceiling height to 12".
3. Set second floor North and South walls to gable
4. Set  pitch on cabin East and West walls to 12" on top floor (that just created a gable roof, so then set upper pitch to 12", lower pitch to 3" on top and bottom floors)
5. Lowered roof pitch to 3" for all rail walls

Result is not what I see in your pic, so something is not right.  I tried raising the ceiling of porch so roofs would line up but it went back to the roof merge problem, then tried adding second floor over porch, same problem,

Cabin Layout2.plan

[Jo_Ann]

Maybe try this:

First, you should build a second floor over only the basic house.  Open the 2nd floor and set the room type as 'open below' .  Open the structure tab and set the finished ceiling at "0", uncheck 'ceiling over this room'.  It appears that you might have a loft, and this paves the way.  Do all the roof settings on these walls.

Back on floor 1, you don't need to pull in the east/west walls of the porch (put them back to the edge of the house).   
Next, draw an island room (invisible walls) within the deck room.  Set north invisible wall as 'full gable', and other 3 invisible walls at the pitch you specified.  Open the outer 'room' dbx, and uncheck 'roof over this room'.  

Start moving the north invisible wall towards the house until you see the roof overhang (green dashed lines) just touching the house wall.  Next, start moving the other 3 walls to reign in the wild overhang!   Open the island room and start raising the finished ceiling until it blends correctly with the house roof. The 3 walls and the ceiling height will probably take a lot of finagling.

[moosgang]

Yay!!!! Jo_Ann, that worked!  So happy.  Thank you everyone that provided thoughtful help.

[Jo_Ann]