topic Re: Building Materials are being over ridden in Modeling

Building Materials are being over ridden

g r a n t — Tue, 09 Sep 2025 16:51:07 GMT

Hello,

Today I am working on organizing my project template and cleaning up the Buiding Materials, Composites, Fill and Surfaces.

Something happened today that I've not previously encountered.

My template is based on the out of the box ArchiCAD 28 USA template.

When cleaning up the building materials there are two folders (Wood and Thermal) that when I change either fill or surface for one material all other materials in the same folder are changed to that material. I thought I made some "select all" mistake or similar. That is not the case.

Is there an option for "apply to all in folder" or something like that?

Here are some screenshot of the folders. You can see for two folders the surfaces are all the same. I did not do that intentionally.

Re: Building Materials are being over ridden

Eduardo Rolon — Tue, 09 Sep 2025 17:37:45 GMT

Verify that AC doesn't need an update. I've seen this in unpatched versions.

Re: Building Materials are being over ridden

g r a n t — Tue, 09 Sep 2025 17:48:27 GMT

Hi. Thanks. Everything is up to date. I did just switch to the subscription AC28 a few weeks ago.....?

Re: Building Materials are being over ridden

MitchD — Tue, 09 Sep 2025 23:32:28 GMT

If you select the folder as opposed to the individual building material (which it appears you have), the settings on the right will apply to everything in that folder.

Re: Building Materials are being over ridden

Eduardo Rolon — Wed, 10 Sep 2025 00:40:05 GMT

Confirmed.
That is not how folders should behave.

Can't think of an use case in which I would want all BMats or Surfaces within a folder to be the same.

Re: Building Materials are being over ridden

Barry Kelly — Wed, 10 Sep 2025 00:44:28 GMT

That could be dangerous.

Barry.

Re: Building Materials are being over ridden

Lingwisyer — Wed, 10 Sep 2025 01:02:01 GMT

Yeah, I did wonder why there were settings that could be modified when you had a folder selected...

Ling.