Create ceilings/roofs
Button: 
Command name: CreateCeilingAndRoofs
You can use CreateCeilingAndRoofs to create ceilings and roofs.
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Select the room symbols and/or the floor frames for which you want to create the ceiling components.
Roof components are created if you have already tapped primary roofs/dormers, otherwise ceilings are created.
Tip: Only create the floor on the top floor, as the corresponding roof shape is often tapped afterwards.
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Confirm your selection with the Enter key.
The created ceilings are displayed with orange-coloured crosses. No ceilings are created for rooms that extend over several storeys (e.g. stairwell) and whose room numbers have been edited accordingly.

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You can make changes to the ceiling components at any time. Right-click on the relevant ceiling component and select Edit ceiling or double-click on the relevant component.
The Edit component dialogue opens.
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You can select a component type in the Type drop-down menu.
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In the Name drop-down menu, you can adjust the name of the component with the corresponding U-value from the heat load calculation.
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Click on OK.