first time home owner of a 1840 home in upstate western NY, all wood floors in living room need of TLC, lots of squeaky boards and a little sag all has to be resurfaced, also there no basement under this part of the house.
Discovered today when i pulled up a 2ft section of board to inspect a soft spot in floor that there is nothing under my floor!!! Only old Joice and ground.

What should i do? I now know why it is always old and damp in our large living room. HELP!!!