Mark3D

How i fixed i just selected the gable attic walls then just auto re built them and the side triangle walls i had to pullback the lower roof plains as chief stops walls below roof plains

See if that is getting better i think may have setup your exterior walls wrong unless i am missing some thing to me they should be a single wall unit 

Also that small image is a bit to small to see

Barndominium.zip

No problems for me amd desktop and laptop both good

upload your file you will most likely  get a fix 

Help with getting terrains working or complete terrain model

Minor fixes or a tip to get things working free

Major fixes ask about fees private message me

Complete terrain model  ask about fees private message me

open this plan i have put some instructions in it to follow

Sloping Block 2.plan

Here is chief file with cad in it to help with showing house position

Sloping Block.plan

the hatched box is a copy of your terrain is that how you would place your house or if not  can you explain

Are you using x7 or have forgot to update your signature in chief talk

Ceiling height needs match

Would that be close enough if so it is just using railing panel from core catalog and the hand rail can be set to what ever you want

try this file i put the roof at 25 pitch

Huis_mei_2021.plan

Have look at this file see if it is on the right track

Huis_mei_2021.plan

Have a look at this file it is working a lot better i added a terrain break set retaining walls to default top and bottom heights and tweeked the terrain data to help

24wc_left_7ft_exp2.plan

When i was looking at your file i noticed you had terrain data on top of terrain data there is a elevation  region in front of garage if you keep the elevation region and remove the elevation lines in the same space as  your elevation region buy doing a complete break and deleting the over lapping data your  terrain will behave much better you should never have multiple elevation data in the same space

that model needs a terrain hole as your terrain is quiet steep and its surface shows up on multiple floors so chief is can not clip correctly 

Upload your plan would help you might have intersecting terrain elevation data or you have just not told the terrain to rebuild after you added the data it’s hard to tell with out the plan file 

Make sure the roof plane that  butts into that wall does not cross it , it should just touch its edge as roof planes stop walls

This is close to auto but auto roof needs to be off on final edit i hope there some smart person on this forum who can get it all the way

Desired roof.plan

Export to cad detail then adjust to suit

maybe this file will help you

roof skylight.plan

front wall over the garage has no room definition selected

Designing a Cape Cod Roof Bearing on 1st Floor Walls (chiefarchitect.com)

here is a rough example raise porch ceiling first auto build roof and that had to manual tweek a bit to finish it 

roof.plan

that is good information thanks