The house was built in the 20's or 30's, i do know it has boards running at an angle behind the siding,don't remember if it was rough sawn or not. There is no vegetation over grown, it was neglected for a lot of years, some since I have lived there. The siding is rotting,not on all places, and the boards behind are also in places, I also have to replace some windows as the wood around them is rotting too. There is nothing between the siding and sheathing, what insulation is there is compacted at the bottom. So let's figure it is a balloon framed house, if I were to do small sections at a time, that should not affect the rest of the house right?