multilayered object

[mostafa90]

hi champions, i want to know how can i create a multilayer material object family , like walls,
is there a way for this?

also i want to create masonry frame around window like picture 2 ,that wall joined together and the paint moves around the masonry frame.

also i want to know, do i have to create every thing modeled in specific or just 3d blocks or detailed view can do the job , to make my self more clear, the masonry frame around window will be applicable for building by bricks for the left and the right and the bottom except the top it should be Iintel precast reinforced concrete. so do i have to model the concrete block or make it all walls and use the filled region to identify the concrete block


i hope i can find answers