Roof and wall layout issues

[ChristianA]

I am a relatively new Chief user and have been struggling with a type of roof where there is a cathedral ceiling and an overlay roof above it.  Part of cathedral roof will have no overhang and the exterior wall will continue up to the overlay roof.  I can never get this to frame clean and I'm not sure how to build the wall above the cathedral roof.

 

I do this type of roof quite often and would love a quicker, cleaner workflow.  Please see the attached image.  I am have trouble attaching the plan file because it's too large.  Thanks in advance!

 

Christian

[Doug_N]

You can always upload your file to dropbox or onedirve that then paste a link to the file in your post like this.

 

18 King Street E Cobourg Proposed.plan

[ChristianA]

OK,  Let's see if this works

 

Unit 3b.plan

[Doug_N]

 

Is that what you are looking for?

[ChristianA]

Hi Doug,

 

That looks right for sure.  Does the rafter sit on top of the wall plates or does it hang off the inside face of stud?

[Doug_N]

Hi Christian,

 

You would have to do a bit of cad work for the sections, but I would recommend the rafters would sit on blocking between the studs and some fancy Simpson hardware to take the load.

It might also be possible to do this with a ledger above the ceiling.  

 

 

I just spent a few moments to sort out the roof manually.

 

Unit 3b.zip

[ChristianA]

Hi Doug,

 

Thanks for fiddling around with the roof, I appreciate your time on it.  I kinda figured that to have walls raise up to the upper overlay roof, the structural cathedral roof can not lap over the top plates of the wall.

 

Regarding the framing, I will tweak the framing later so that it sits on the top plates of the wall.  I don't want to mess around with hanging the roof framing off of the wall or getting into penetrating the wall cavity.  I know how they will build it, they'll put up the 9/0 walls, build the cathedral roof, frame the overlay, then sister some studs next to the rafter seats for the sheathing attachment on the wall in question.

 

Christian