Can not intersect duplicated loopcuts into model Hi,

I can't intersect the duplicated loop cuts into the model.
I first made horizontal loop cuts, then i made some vertical loop cuts and duplicated those,
it would be a quick way to repeat the cuts for putting in the windows.
The problem is that the vertical loop cuts do not intersect with the horizontal loop cuts.
I tried intersecting them, cleaning, removing doubles, joining, boolean,  etc. etc,..

Need some help here!
Using Blender 2.70a
Try deleting the face loop under the duplicated portion, then using W>Bridge Edge loops (WE):