Make a plan. See layout deal in our Application Manual.
Clean subfloors. Make sure to correct high and low points so surface is even.
Start from the furthest point from the manifold and place each board in your pre-determined pattern.
Cut filler boards and place them in your pattern.
Mark and number your boards for reference.
Align the boards with short lengths 3/8″ PEX
Pull out boards and apply construction sub-floor adhesive.
Fit boards in place, then align, staple, or screw.
Walk the tubing into the grooves and tap the high points with a rubber mallet.