I've purchased a home where the previous owner installed 3/4" wide plank pine over a 5/8" plywood subfloor. The plywood is glued to a concrete slab but there is no felt paper between the 2 woods. ...
This might be better suited as a community wiki, what do you think? My parents house has very squeaky stairs. The house is over 100 years old, so it's to be expected. What can be done to fix a squeak ...