Hi, I have building which has a curved roof`: I have two floors but since the roof is curved, the second floor is smaller than the first one. [Capture d’écran 2026-04-24 063250] The first floor rooms that don’t have a room above have directly the roof as a ceiling. So every room top has a curv…

Here is cleaned up version with help from Rhino to simplify the roof for future reference. [image] [image]

Hi @cgeneves , welcome to the forum! In Pollination classic there is not much that you could do for a roof like this within the Revit plugin. The way I have dealt with similar projects in the past has been to export the roof as shade, save it as HBJSON, open and simplify it in Rhino, save it back as…

Hi, I have no access to Rhino unfortunatly. I can share the model, but no publicly. How could we proceed?

@cgeneves I too had a curved roof starting in Revit with no Rhino access, and Mostapha helped me with the HBJSON-Rhino-HBJSON process. Without that process, it is as you expect, many triangles and the Model Editor lags terribly. Looking forward to the Revit Plugin v3.0 to reduce the mesh of the Re…

Hi @seane , thank you for your comment. I’m also hopeful to see how far we can take the geometry simplification without the need to go to Rhino. [image] seane: Looking forward to the Revit Plugin v3.0 to reduce the mesh of the Revit and avoid the workaround process. Meanwhile, the version 3.0…

@cgeneves , I ran a quick test with the large faces of the roof, and after setting the Mesh Detail to 0 I get this: [image] As you can see, the roof shows up but I’m not sure if this is a good model for energy simulation. I will record a video for you, and include a step to simplify the roof in R…

Best practice for curved roof

Revit Plugin

mostapha (Mostapha) April 28, 2026, 6:33pm 6

Hi @seane, thank you for your comment. I’m also hopeful to see how far we can take the geometry simplification without the need to go to Rhino.

Meanwhile, the version 3.0 is now available publicly and you can give it a try!