Hi All:
Thanks Jim for that little tip about the central post being used at certain times in England, I wasn't aware of that. I guess we all get carried away by the techniques that were used and practiced right in our own areas. One other thought on the central post theory that may or may not be useful is that the use of 2 purlin plates would leave a good wide open central space area on the second story level. This might help out in the planning stage for future use.
Jim I wonder if you could expand on your statement of "reducing the span of the roof by eliminating an outside bay of the original bent and converted to a structural ridge requiring the central main floor posts" this sort of intrigues me. Do you mean that you narrowed up the building by a certain amount?
NH