Facade system is inverted and going inwards instead of outwards

I want my facade system to go outside like here in the screenshot but everywhere else but the screenshot its inverted and goes inside instead of outside does anyone know how to fix this?

10.10 bark facade opera house.gh (92.6 KB)

rhino file forgot to add it 10.10 Final form opera house.3dm (10.2 MB)

Looks like some of your surfaces have the normals inverted… This causes the “Offset Surfaces” component to offset in the wrong direction. You can either “flip normals” on the effected surfaces before inputting to the offset, or you can change the offset distance input value to a negative… see attached screen shots.

Hope this helps!

perfect thank you so much!