Model a room?

Right now I’m trying to model a basic room scene, but I keep having problems with the walls and windows. I subsurf the walls in order to get a better look for the windows, then add extra loop cuts in order to get sharper edges. Everytime I add loop cuts though I get these wierd cuts and edges in specific places. Anyone know whats going on and how I can fix it?


with subsurf you nedd to add more then 1 loop it’s more like 3 loops minimum to isolate the sharp edge from the rest so that sub surf can work real well
also sub surf does not like triangles so make certain you eliminate thoses tri’s