This pic shows the old wiring in the ceiling.  I ripped it all out and replaced it with new.  I also added 6 inches of insulation into the attic after I put all the wiring connections into junction boxes and put 2 wind turbins on the top side of the roof for better air circulation.

Here is a view of the new back with the addon finished.

Here is another view at a different angle.  The hole in the wall is for the AC, which is back in now.   I used vinyl siding on the exterior.

Here is a view looking back towards the laundry room.  The laundry room was totally gutted also.

This is a view of the den looking back toward the new bedroom (old starage room).