Posted: August 26, 2009 1:55 PM
A wooden sub floor must be cleaned from any waste, grease, paint, oil or debris. It is important to make sure that the wooden sub floor is structurally
sound and perfectly clean. You must nail, screw or staple any squeaky
or loose areas. Replace any damaged sub floor, do not leave it
untreated. The minimum thickness required for a plywood sub floor is
5/8”. We strongly recommend using a 3/4” plywood thickness. Plywood
sheets should be laid out with grained outer plies that are at a
perpendicular angle to the floors joists.
The moisture content within wooden sub floors is very important. Moisture levels mustn’t exceed over 16% ! You can use a Moisture Meter
to check the moisture level within your wooden sub floor.
The next step in the preparation process is to check the flatness of the wooden sub floor. The sub floor must be flat and free from any nails or staples. The
height variation cannot be larger than 1/8” over 6'. You must sand the
high spots and fill in the lower ones. We recommend using an Edger
Sander, for it can run in a small, dense sub floor and target the
desired area.
TAKE GOOD CARE OF YOUR SUB FLOOR - IT IS THE KEY TO HAVING A GREAT HARDWOOD INSTALLATION !