Plywood Over Concrete For Hardwood

Float this is when the hardwood is clicked into each other or glued at joints but is not attached to the floor.

Plywood over concrete for hardwood.

Alternatively screw rows of treated 1x4s to the concrete 16 in. Before hardwood flooring is installed over concrete a plywood subfloor must be installed. Loosely lay a nailing surface of 3 4 4 x 8 exterior plywood panels over the entire area leaving a 3 4 space at the wall line and 1 4 to 1 2 between panels. Install the plywood after the vapor retarder is in place.

Often when we talk of subflooring people think of lauan plywood which is used as subflooring over thicker plywood in preparation for installing a vinyl floor. There is a product you can buy from your local home depot store for putting under a floor over concrete. 1 nail down requires plywood sub flloor you can t nail into concrete last i checked 2. I don t remember what it is called but it comes in a roll 6 ft by 50 ft.

Once you ve installed a vapor retarder install your subfloor. The floor is secured via the base molding around the edges. A moisture control membrane is recommended any time a wood subfloor is installed over concrete. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.

Not all subfloors are the same. Concrete has moisture in it and your wood will mold and rot over time. Cut plywood to fit within 1 8 near door jambs and other obstructions where finish trim will not be used. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring.

It looks like a sheet of dimples or very large bubble wrap. Installation over concrete with a calcium carbide reading of greater than 2 5 percent. Learn how to install beautiful hardwood floors over a concrete slab. Solid hardwood can not be glued except for bamboo 3.

Do not use pressure treated plywood unless it has been kiln dried after treatment kdat and moisture content coincides with the in use environment of the facility in which the flooring is being installed. To install a floated subfloor system first place a layer of plywood subfloor panels with the edges parallel to the wall. Most subfloors over concrete use exterior grade plywood or osb oriented strand board. Glue down engineered hardwoods can be glued note.

Don t glue the plywood to the concrete.