Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

Trim to roof anomoly

Anonymous
Not applicable
I've got a roof with valleys and when I trim the walls below to the two roofs forming the valley I get this little skinny piece of wall sticking up right through the valley. Anyone else had this problem and know how to fix it?

Rick
22 REPLIES 22
Laszlo Nagy
Community Admin
Community Admin
Works well for me.
This is for valleys.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
Laszlo Nagy
Community Admin
Community Admin
This is for Roof Top edges.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
Erika Epstein
Booster
Oooh, Karl I was so excited that I showed you something you hadn't seen before. Somehow that it has a bug, well OK, you still made my day. It's a treat to be able to give back to you!

Yes that vertical option is buggy. I noticed that it only makes vertical the last roof selected. I wish I could say that's why I always used miter, but I'd be lying. I used miter all these years because it always gave me the correct join without having to think about the angle.
Erika
Architect, Consultant
MacBook Pro Retina, 15-inch Yosemite 2.8 GHz Intel Core i7 16 GB 1600 MHz DDR3
Mac OSX 10.11.1
AC5-18
Onuma System

"Implementing Successful Building Information Modeling"
Anonymous
Not applicable
I knew about this method. Link showed it to me years ago.
I used it when I had two roofs of unequal pitch and unequal thickness.
It used to work but now in AC 10 and in AC 12 it does not work.
Laszlo might see if he can get this method to work on
roofs of unequal thickness.
Thanks,
Peter Devlin
Laszlo Nagy
Community Admin
Community Admin
I think with Roofs of unequal thicknesses it never worked and it does not work now.
But as I see Karl's Roofs are of equal thicknesses.
Mysterious.

Edit:
What I meant by unequal not working is shown on the attached image.
It should do it like the red lines show it, in my opinion.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
Anonymous
Not applicable
Karl wrote:
Did 'miter' work in earlier versions of AC with dissimilar sloped roofs? Wonder if this is a bug or user error on my part.
Vertical mitre worked in AC10, but not in 11 or 12!

It worked in AC10 with unequal thickness's too.
Dwight
Newcomer
Regardless of how well a little detail like this works or not or it did and now it doesn't, I marvel every day that we don't draw in graphite any more. This whole BIM thing is so amazing and unimaginably complex........ at least for Graphisoft.......
Dwight Atkinson
Laszlo Nagy
Community Admin
Community Admin
I know now what the bug exactly is.

It happens both in the case of valleys and Roof top edges:
You select the two Roof element (their adjacent edges overlap, that's needed) and click the "Set Roof edge angle" button in the Pet Palette.
The little Dialog comes up and here is the trick: It always defaults to "Vertical".
Now, if you choose the "Mitred Joint" radio button, then it will perform the mitred operation on both selected Roof elements.
However, if you do not change the default selection (meaning, you leave it on the "Vertical" radio button) then only the latter selected of the two Roof elements will have its edge set to vertical, the other one stays as it was.
Try it by first selecting the left and then the right and using the Vertical mitre.
Then undo it and first select the right and then the left and use the Vertical mitre.
In both cases the Roof element selected last will only be modified.

This is definitely a bug.
Of course there is a workaround because you can select each Roof and set its edge to vertical.

Edit: rereading the whole thread I notice Erika already pointed out the exact nature of the bug.
Could have saved myself a lot of typing.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
Laszlo Nagy
Community Admin
Community Admin
Karl wrote:
But, I never knew you could select two roofs and mercedes-down on their 'joint' to get this joint customization dialog. I just searched, and cannot find this dialog in the online help or the PDF Reference Guide.
Karl,
You can find some info at the bottom of this page in the html Help file:

Virtual Building : Construction Elements : Roofs : Set Custom Roof Edge Angle

But it is true that it is hard to find and there is not even a n illustration of that little Dialog.
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28
Karl Ottenstein
Moderator
laszlonagy wrote:
Karl,
You can find some info at the bottom of this page in the html Help file:

Virtual Building : Construction Elements : Roofs : Set Custom Roof Edge Angle

But it is true that it is hard to find and there is not even a n illustration of that little Dialog.
Thanks, Laszlo. I see it there now that I'm reading every word! Yeah, needs a new paragraph and a screenshot. 😉

I've filed a bug report...

Cheers,
Karl
One of the forum moderators
AC 28 USA and earlier   •   macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB