Sloped Roof

Hello all,

I’m trying to add a sloped roof in Revit with RIR. I know for sure that the boundary lines are in one plane.

1- is there any way that I can double check that in GH?

2- I get the error/warning shown below. Is there any other component that I can use?

join these lines to create a closed boundary and this component can not create sloped roof.

Use Host Shape Component

Does it mean that first I have to create a flat roof ad then slope it with Host Shape, in my case using two points?

yes exactly

Thank you very much for your help again!