You may just want to draw visible edges--so the floor faces would not reach to the outside walls- they would stop at the interior face of wall. Unless you are making a structural model,leave structure as empty "inside" space. Even with a structural model, you can hide the layer with the innards of the wall and floors for exterior scenes.
Hide lines as suggested. This can sometimes be hard to manage--you find lines showing in scenes you didn't want them or sometimes the perpendicular face attached to the hidden edge shows through in some views. In the course of drawing the line might become visible again accidentally.
Even with thin offset (like 1" for siding), the printed or exported view can look OK--it is often just the on-screen SU view that shows the bleed-through. Even in LayOut. Not a problem in most renderings as well.