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

multi-plan roof gable edge adjustment

heathldesign
Advisor

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


Screenshot 2025-12-29 at 16.43.29.png

MAC Studio 2022 M1 Max, 32 GB RAM, 10 cores, AC27 5030 Apple Silicon USA Sequoia 15.3. AC 27, 6000 USA
1 ACCEPTED SOLUTION

Accepted Solutions
Solution

@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
  1. Select the Roof: Click on the Multi-plane Roof you want to split in the Floor Plan or 3D window.
  2. 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.
  3. Confirm (If Prompted): ARCHICAD might show a warning; select "Split anyway" or similar to proceed.
  4. Result: The single Multi-plane Roof element will now be several independent Single-plane Roof elements. 
AC8.1 - AC29 ARM AUS + CI Tools
Apple Mac Studio M1 Max Chip 10C CPU
24C GPU 7.8TF 32GB RAM OS Sequoia.

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12 REPLIES 12
Lpalma
Booster

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

I hope this help!

Lpalma

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

MAC Studio 2022 M1 Max, 32 GB RAM, 10 cores, AC27 5030 Apple Silicon USA Sequoia 15.3. AC 27, 6000 USA
cuba
Advisor

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.

Apple M1 Max 32 GB Ventura
AC27

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 

MAC Studio 2022 M1 Max, 32 GB RAM, 10 cores, AC27 5030 Apple Silicon USA Sequoia 15.3. AC 27, 6000 USA
mthd
Virtuoso

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. 

AC8.1 - AC29 ARM AUS + CI Tools
Apple Mac Studio M1 Max Chip 10C CPU
24C GPU 7.8TF 32GB RAM OS Sequoia.

^

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.

 

AC24 / AC26 / AC27
Win10

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.

 

MAC Studio 2022 M1 Max, 32 GB RAM, 10 cores, AC27 5030 Apple Silicon USA Sequoia 15.3. AC 27, 6000 USA

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

Apple M1 Max 32 GB Ventura
AC27
Solution

@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
  1. Select the Roof: Click on the Multi-plane Roof you want to split in the Floor Plan or 3D window.
  2. 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.
  3. Confirm (If Prompted): ARCHICAD might show a warning; select "Split anyway" or similar to proceed.
  4. Result: The single Multi-plane Roof element will now be several independent Single-plane Roof elements. 
AC8.1 - AC29 ARM AUS + CI Tools
Apple Mac Studio M1 Max Chip 10C CPU
24C GPU 7.8TF 32GB RAM OS Sequoia.

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