Modify the Roof Pitch

For a Single-plane Roof:

Once you’ve drawn a roof and selected it, you can modify its pitch in any one of the following ways:

Change the roof pitch in the Info Box or in Roof Settings.

In the 3D window, select the roof, click on any point that is not on the pivot line, then select the Change Roof Pitch command from the pet palette and graphically adjust the roof angle (or enter a Pitch value into the Tracker.) The roof will rotate around the pivot line.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-25/040_elementsvb/SlantAngle.png 

In the Floor Plan or 3D Window, select the roof, then Ctrl+click (Mac: Cmd+Click) at any point on the roof plane to bring up the Roof Elevations dialog box. Enter a numerical value in the top field: this value will be the elevation value of the roof plane at the point at which you clicked it. Altering this elevation value has the same effect as modifying the roof pitch.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-25/040_elementsvb/RoofElevations.png 

For a Multi-plane Roof:

Modify the roof pitch in one of the following ways:

Change the roof pitch in the Info Box or in Roof Settings.

Use the Custom Plane Settings dialog box to set a custom pitch for any selected plane.

See Customize Roof Plane.

Use the Pet Palette editing commands (e.g. Elevate Horizontal Ridge) to alter the geometry of the selected plane(s), including the Pitch.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-25/040_elementsvb/StretchRidgeVertical.png 

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