High Shed Roof not building high wall with Trusses

[Chrisb222]

So I have a project that calls for a high shed roof with a matching vaulted ceiling, built with parallel chord trusses. The program doesn't want to build the high wall when using trusses. It will build it with rafters, including ceiling joists. See attached images and attached OOB Residential Template sample plan.

 

I can manually raise the wall top height, but it doesn't function correctly for setting high windows, and caused other problems as well.

 

Thanks for any insight if I have missed something, but I think this is "unintended functionality" that needs sent in...

 

Rafters:

 

 

Trusses:

 

 

Sample file:

High Shed Roof.plan

[robdyck]

Balloon through ceiling above. Also, edit the roof structure depth to be the full depth between the ceiling and roof (24.5" in your case).

[Chrisb222]

1 minute ago, robdyck said:

Balloon through ceiling above.

 

Yes, I already tried that. Balloons to the truss top chord which isn't workable.

 

The wall builds correctly using rafters without any adjustment to the wall. That's the difference.

[robdyck]

Also, edit the roof structure depth to be the full depth between the ceiling and roof (24.5" in your case).

[robdyck]

I know that not everything makes sense here. For example, if the roof structure is really deep, you shouldn't need the ceiling plane, right? But Chief won't build trusses without the ceiling plane, it switches back to rafters even when trusses remain checked.

[Chrisb222]

36 minutes ago, robdyck said:

Balloon through ceiling above.

 

Finally got this to work. Initially it ballooned to the top chord, but dragging the sloped ceiling out to the outer wall layer stopped it at the bottom chord.

[Kbird1]

On 10/20/2023 at 8:21 AM, Chrisb222 said:

 

Finally got this to work. Initially it ballooned to the top chord, but dragging the sloped ceiling out to the outer wall layer stopped it at the bottom chord.

 

Sounds like it should still go in for a look at perhaps..... as that shouldn't be needed..... the ceiling plane or pulling it out.....

 

M.....

[GeneDavis]

I recall watching a Chief training video on trusses, and the ceiling planes were draw with baselines at the outside of exterior walls.  If there is no plane to stop the wall, the wall will reach up to whatever stops it.

 

I'm completing a set of con docs right now for a shed-roofed house, and found i-joists to be much better, cost-wise, than parallel chord trusses.

[Chrisb222]

19 hours ago, Kbird1 said:

Sounds like it should still go in for a look at perhaps..... as that shouldn't be needed..... the ceiling plane or pulling it out.....

 

I agree, I'm sending it in this morning just for a look-see. The truss setting should perform the same as the rafter setting.

 

11 hours ago, GeneDavis said:

I recall watching a Chief training video on trusses, and the ceiling planes were draw with baselines at the outside of exterior walls.  If there is no plane to stop the wall, the wall will reach up to whatever stops it.

 

What's interesting is my setting is balloon through ceiling above. And I always draw ceiling planes to the inside of the wall and the wall stops at the ceiling. Confusing.

 

11 hours ago, GeneDavis said:

I'm completing a set of con docs right now for a shed-roofed house, and found i-joists to be much better, cost-wise, than parallel chord trusses.

 

Right, that option is also being explored. Different pros and cons.