our existing wood floor can serve as a subfloor. Drive
down any raised nails, re-nail loose boards and replace
any warped boards that can't be made level. Sweep and
clean the floor well, but don't use water.
Remove thresholds to allow the new flooring to run
flush through doorways, remove doors and baseboards.
Lay asphalt felt or building paper over the old floor.
Do not install the new floor to the old floor in the same
direction. Install at a right angle or on a diagonal. If
the preferred direction is in the same direction as the old
floor, overlay the old floor with 3/8in to 1/2in plywood.
our existing wood floor can serve as a subfloor. Drive
down any raised nails, re-nail loose boards and replace
any warped boards that can't be made level. Sweep and
clean the floor well, but don't use water.
