For creating complex roof it might be easier if you create separate roof then use join roof tool to join them later.
Revit how to make top layer of roof longer.
For more information see modify the shape of a roof or structural floor.
Probably best to use roof by extrusion in this case.
The revit interface is a bit unclear about constructing a flat roof but no roof is truly flat and creating a flat roof in revit allows the designer to annotate the roof without having to deal with the issues associated with the modeled hips and valleys of a low slope roof.
You need to create the bay window roof separately.
Then follow these 2 steps.
Get templates families and content that are designed to be clean and graphically elegant.
When there is a variable thickness layer the top face of the roof or floor slopes and the bottom stays in a horizontal plane creating.
Once you have all your layers you can edit the roof and extend the layers however you want.
Click ok until all of the dialogs are closed.
To create a dormer model required walls and additional roof.
This is the easiest way to do it.
Use it to extend the dormer roof to the main roof.
The variable layer thickness parameter of roofs and floors affects the shape editing tools in the following ways.
This tool is located in the modify tab.
When there is no variable thickness layer the whole roof or floor slopes and maintains constant thickness between parallel top and bottom faces.
The starter course s vertical ad horizontal edges should extend between 1 4 inch to 3 4 inch beyond the edges of the rake and eave.
You could also model each roof layer separately.
You don t even need to sign up.
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Also has the advantage of using different cuts on the end.
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Make one copy it up change type repeat.
Use join unjoin roof tool.
Using shape editing tools.
Just enjoy the course and drop me line if you found it useful.
But i m not really sure if this is a best practice.
A starter course layer of shingle strips with the exposed tab portion cut off is installed on the eave edges of the roof.