Make sure subfloor is tested for moisture content first and is properly prepared.
Sound / Cushion / Moisture Barrier Underlayment
Lay an underlayment of polyfilm: If below or on grade, first lay a 6-mil polyfilm with seams overlapped 8". Fasten seams every 18-24" with duct tape. Run the outside edges of film up perimeter of each wall 4” (trim after flooring installation is complete.)
Moisture / Sound / Cushion:
Option #1 - Laying foam:
Lay Foam Underlayment by butting edges, not overlapping. Tape full length of the seam.
Option #2 - Laying cork:
Lay Cork Underlayment
Installing the floor:
Start first row with groove toward wall. Glue end joints of first row by applying a small but continuous bead of Franklin Titebond 2 PVAC glue to bottom side of the side groove. Always leave at least a 3/8" expansion space between flooring and all walls and vertical objects such as pipes and cabinets). Use wood or plastic spacers during installation to maintain this expansion space. Lay subsequent rows of flooring by applying glue to side and end joints and fitting planks together with a tapping block. Remember to stagger end joints from row to row.
Clean up any adhesive that is on the face of the floor by using a damp rag – DO NOT allow adhesive to dry on the flooring face as it is difficult to then remove without damaging the flooring face.
If you decide to cover the floor (to allow the other construction trades to continue working), in order to protect the floors prior to final cleanup and turnover to the owner, use rosin paper to cover the floors and only use 3M Blue Tape to hold the rosin paper to the floor. Do NOT USE plastic film or other non breathing type coverings as this can cause the floor to become damaged from humidity buildups. Also, only use the 3M Blue Tape as this tape is designed for use on finishes and other tapes may pull and damage the finish when removing it.
Remove expansion spacers and reinstall base and/or quarter round moldings to cover the expansion space.
It is suggested that you buff the floor with lambs wool pads in order to “pull any splinters”, remove any residues and handprints/foot prints, etc.
Install any transition pieces that may be needed (reducer, T-moldings, nosing, etc.).
Dust mop or vacuum your floor to remove any dirt or debris.