At first i thought the problem was that i had underlaid the first floor on the lower level revit didn t like underlaying a floor above but i ve done that on other projects and it worked as expected.
Revit roof plan underlay.
Three of the underlay options current level level above and level below are relative to the current level.
I thought i would see what shows on the first floor view.
All other choices are absolute.
In the main floor level the bottom of the primary range is set to main floor with an offset of 1.
Once i do this my roof element become visible in the ground floor plan.
Open the plan view of the level in which you want to see the roof line.
Base level select the level you want to underlay.
This issue occurs because there is an incorrect view range in the main view.
In the view properties expand the underlay drop down and select the level on which the roof was created to display.
In the project browser open a plan view.
In the properties dialog box for the view you want to see the overhang lines in set the underlay drop down to be the level on which the roof was created.
If the view range intersects the geometry of a level in your main view that level cannot be used as an underlay in the main view.
How do you make roof lines visible in floor plans revit 1.
Now it s at this point where i could just trace over the perimeter.
Had to crack open revit and play for a while.
When you tried to underlay a floor only doors and windows were visible.
So i change the underlay parameter you find this is the properties palette to the level where your roof or roof light canopy etc resides.
I highlighted the roof lines that are the underlay.
For example you may want to set an underlay for the casework in the kitchen to make it easier to place the light fixtures above.
You set an underlay by specifying a level.
The slice of the model between that level and the next level up displays.
Select the linework tool in the view panel.
In this example my roof element is at level 1.
Then select the line style you want to represent the roof overhang in the view.