Originally Posted by glennjanie
Welcome to the Fourm R W Wood:
An alternative to that would be to put a supporting wall or beam in from end to end of the house at the top of the rafters.
I'm not sure what you mean by "at the top of the rafters." There is only one wall that runs the length of the house, and it's directly under the peak of the roof. If you mean extending that wall directly to the peak, I suppose that could be done, thereby giving the two rooms either side of the center wall one high and one low wall. I'm not sure there is adequate support in the basement of that center wall though, and adding it would probabably be difficult since the chimney goes up through the middle of the house.
Be aware, this could give a lot of problems with electrical wiring unless you have a basement, and all I have said is based on having 2" X 6" or larger rafters; if it is a truss roof don't touch it.
Neither of these points is an issue.
It'll be awhile before we get to doing this, but I'm trying to formulate plans for the whole house prior to starting anything.