Split floors into two separate identities

[adiA48P7]

Hello, 

I finished drafting the floor plans of a huge office space, and now the client wants to change many of the floors to a different material. 

I managed to split the floors but I can't change their material, they all still work as one element.. 

Please help 

[Yien_Chao]

you can use split surface for splitting into multiple surfaces and then paint each faces individually.

[JL.FCG]

Have you changed the floor to a different type? 

For example, one side is concrete and the other timber?

[constantin.stroescu]

when I have to deal with big buildings that have multiple floor finishes, I usually create two type floors one over another, a Structural and an Architectural one (as it is done in real life on worksite):

• first ,I create a second row of Levels - structural Levels beside the architectural ones then create the Structural Floors that go on entire surface (if I have an already existing Floor , I turn it into a simple concrete slab). These slabs will be aligned with structural Levels. 
• then, I create the Architectural Floors that consist of multiple layers of insulation, screed and finishes as desired
• The Structural Levels elevation have to take in consideration the thickness of the Architectural Floors
• The Structural Levels can be then managed by structural engineer and structural slabs can be changed accordingly .