How to Level a Plywood or OSB Subfloor Using Asphalt ...
Dec 10, 2011 · Our plan is to lay a new layer of 15/32″ of sanded plywood and slap a few coats of paint on it until the budget allows for something a little more desirable. Round and round about the best method to level our floor, I found a terrific article from Fred Fauth, How to Level a Plywood or OSB Subfloor Using Asphalt Shingles & Construction Felt.