I have an old house with pine board floor and subfloor. The floor is
unbearably squeaky and both floor and subloor are rotting in some places
from leaking steam heating (fixed already). There are gaps in the floor wide
enough to see light in the basement. I would like to fix the floor (replace
the top boards at least), seal it, and stop the squeaking.
Is there a way to remove the subfloor and install plywood without disturbing
load bearing interrior walls?
Would I be better off attaching the subfloor boards to the joists with a
couple thousand screws and gluing plywood on top? If yes, how thick should
the plywood be?