topic Re: multi-plan roof gable edge adjustment in Modeling

multi-plan roof gable edge adjustment

heathldesign — Tue, 30 Dec 2025 05:24:16 GMT

hey everyone, i have a multi-plane roof and at the gable ends you can adjust the roof gable overhang, but what i need to do is adjust the lower roof portion edge instead. hard to explain. hopefully the pic will explain. it seems that this edge is always associated with the pivot line, but because the lower roof portion is a hip roof, i can't move the pivot line without affecting the overhang and hip locations. so is there a way to move the "ridge" portion of the lower roof in the direction of the arrow? see pic

Re: multi-plan roof gable edge adjustment

Lpalma — Tue, 30 Dec 2025 13:55:46 GMT

Try stretching the pivot line of the roof hotspot without dragging it to access the vertex to modify.

I hope this help!

Re: multi-plan roof gable edge adjustment

heathldesign — Tue, 30 Dec 2025 15:12:43 GMT

Sorry Lpalma, but I don’t think I understand.

Re: multi-plan roof gable edge adjustment

cuba — Tue, 30 Dec 2025 18:55:51 GMT

I’m not exactly sure what you’re trying to do, but I think you drew the lower roof as a single roof. Select it and split it into separate roof planes (right-click menu); that will make it easier to manipulate.

Re: multi-plan roof gable edge adjustment

heathldesign — Fri, 02 Jan 2026 15:56:31 GMT

No I didn’t. This is a multi plan e roof. I wast to adjust the high side of the lower roof (red arrow ) out away from the

Re: multi-plan roof gable edge adjustment

mthd — Mon, 05 Jan 2026 02:25:12 GMT

Hi @heathldesign, Are you just wanting to cut out a part of the lower roof where it meets the gable overhang ? If so you can edit the roof plane in 2D to do so but If not then please give us more information.

Re: multi-plan roof gable edge adjustment

JeffH — Mon, 05 Jan 2026 14:29:14 GMT

In plan view, select the roof to modify, and you should be able to add nodes, than stretch the portion that need moved and pull away from gable end.

You will probably need to select that roof, and split it to single plane Roofs via right clicking.

Re: multi-plan roof gable edge adjustment

heathldesign — Tue, 06 Jan 2026 22:49:42 GMT

Hi JeffH,

nope, can't add nodes. eventually i could convert it, but for the planning stage it's really handy to be able to make adjustments to the profile on the fly, once converted, it'll be more work and not very practical with the client sitting there waiting.

oh well. another example of how AC doesn't reflect the real world.

Re: multi-plan roof gable edge adjustment

cuba — Wed, 07 Jan 2026 07:22:47 GMT

Can you sketch what you need? I am sure it is possible to do. Now it is not clear...

Re: multi-plan roof gable edge adjustment

mthd — Thu, 08 Jan 2026 02:30:41 GMT

@heathldesign, You couldn’t add nodes because all the roof planes are still locked together ? Do you know how to separate the roof planes into individual parts ? Just incase you didn’t know here is how to do it.

How to Split Roof Planes

Select the Roof: Click on the Multi-plane Roof you want to split in the Floor Plan or 3D window.
Access the Command:
- Right-click the selected roof and choose "Split into Single-plane Roofs".
- Alternatively, go to Edit > Reshape > Split into Single-plane Roofs.
Confirm (If Prompted): ARCHICAD might show a warning; select "Split anyway" or similar to proceed.
Result: The single Multi-plane Roof element will now be several independent Single-plane Roof elements.

Re: multi-plan roof gable edge adjustment

BrunoH — Thu, 08 Jan 2026 14:31:29 GMT

Hi,

Is this that you want to achieve ?

Re: multi-plan roof gable edge adjustment

heathldesign — Thu, 08 Jan 2026 17:37:41 GMT

Hi mthd,

this will work for the final plans and modelling, but i was hoping there was a way to do it while retaining all the dynamic adjustments that can be made to the whole roof object as a multi-plane roof. this flexibility is very helpful for fine tuning the roof profile with clients. the break it into separate single plane roofs will allow greater flexibility, but then defeats the purpose of a multi-plane roof tool. thanks for the the tip everyone, i can move forward at least.

heath

Re: multi-plan roof gable edge adjustment

heathldesign — Fri, 09 Jan 2026 19:14:16 GMT

Hi BrunoH,

your result is not quite real world. see my pics. we usually want roof overhangs on the gable, and we also want the gable edges to line up with the valley (hard to explain see pics) converting to single plane roofs works perfectly, but defeats the point of having a multi-plane roof tool imo.