We will take a look at the roof by footprint and roof by extrusion options for creati.
Hw to darw a gambrel roof in revit.
Select build roof build roof from the menu to open the build roof dialog.
Eric wing dives into flat roofs first showing how to pitch insulation to roof drains add crickets and warp roofs to fit sloped framing.
In this example a 30 by 40 structure is used.
Solution on the design bar click the basics tab.
This will prompt you to select a reference plane.
Once you are in roof by extrusion a dialogue window will open.
The settings here act like defaults for roofs.
You are sketching only a single line not a closed loop like you.
The steps to model a roof by extrusion in revit are as follows.
To create an automatic gambrel roof open a new blank plan and draw four walls to form a rectangle.
First we need to navigate to the roof by extrusion tool.
Pick the plane that will show the gable end of the project.
Revit displays the work plane dialog.
Specify the pitch of the steep lower roofs of the gambrel.
To do this go to architecture tab roof dropdown roof by.
Specify the desired depth of the roof overhangs.
Click roof roof by extrusion.
From flat roofs to fun free form roofs and everything in between hip gable mansard dutch hip combination and gambrel.
Click to select one of the end elevations.
In the work plane dialog select pick a plane the default option and click ok.
On the basics or modeling tab of the design bar select roof roof by extrusion.
See hd version of video tutorial here.
Using the line tool sketch the profile of the roof.