Splitting Rafters on Bearings with a Shed Roof


Zarraya
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Hello everyone, 

 

I am really new to Chief Architect and am attempting to design a house with a large single slope roof (a shed roof). I am trying to get the program to spit the rafters on bearing elements, such as walls and beams. No matter what I try I can not get it to work. I have verified this issue in a minimal example. I have 4 walls. The sides are full gable, the back is a high shed. The wall are also set to balloon through ceiling above with flat ceiling unchecked to open the space all the way to the top. I have attempted to put a bearing beam, bearing wall and bearing line in the attic level to no result. Any idea on what the issue is? Is this an unsupported scenario? Thank you for any help!

 

 

Screenshot 2025-08-10 at 10.53.31 AM.png

 

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22 minutes ago, para-CAD said:

My 2 cents.

 

Keep the midspan beam but use continuous I-joists instead of lapped lumber. 

 

2026183726_CleanShot2025-08-10at14_09_58.thumb.png.b999621de750703cd5c91d0c7eed2f6e.png

 

and your plan has nothing in it.

Sorry about the file, I dont know where X17 stores its project files when they are made. As for the I-joists, I worry they will get too expensive, the span is nearly 40'.

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Use two roof planes, overlap them as needed over your support, same spacing but, use a framing reference and place it so that it overlaps the framing as needed right to left, you may need to play with it a bit. You will also need to play with the fascia buttons as to build or not or a combination thereof. See my post about roof planes needing flexibility. 

 

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