CONSTRUCTION

Seal concrete slab against moisture. Roll out foam sheeting to conform to slab. Tape seams of foam. Loosely lay bottom layer of ply directly on foam. Stagger seams. 1" (25.40 mm) continuous thread wood deck screws with counter sinking heads. Tape or patch screw heads and sand seams to realize smooth surface.

Note: If you plan to remove and recycle your subflooring at a future date, do not fill screw holes. Tape over them for easy removal later.