Laying Plywood On Concrete Floor

Plywood can easily adhere to concrete.

Laying plywood on concrete floor.

Install carlisle wide plank floors milled to 1 2 inch thickness by blind nailing and gluing. Lay plywood diagonally across the direction of the finished floor to help prevent cracks along panel edges. To begin you ll need two layers of 3 8 inch minimum cd exposure 1 plywood subfloor panels. Treated plywood to the concrete with concrete screws spaced every 16 in.

As a result the material for the subfloor will acclimate to the temperature and moisture content of the room expanding or contracting before the installation rather than after. There are three primary methods to installing floorboards on a concrete slab. When installed with staples the underlayment sheets are fastened every 2 inches along the edges of the sheet and every 4 inches in the field area. Alternatively screw rows of treated 1x4s to the concrete 16 in.

You could screw the battens down into the concrete if you like but its not going to go anywhere if you don t. Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets. Screws and nails may be spaced farther apart. One way to attach plywood to a concrete surface is to screw it into place with concrete fasteners.

First put down 6 mil plastic. It is best to lay the flooring plastic side down directly onto the cement floor. Sheets can be butted together just touching not forced tightly together or they can be gapped about 1 8 inch or so. One method the sleeper on slab system lost popularity 30 years ago because it added too much height to the floor.

Lay 25mm battens across the floor at 400mm centres fill the gaps between with 25mm celotex and secret nail the flooring to the battens. It can be installed on top of concrete before hardwood flooring or another type of material is installed. How to install a plywood subfloor on a concrete slab floated subfloor system. Then buy 3x3x0 75 foam blocks and glue them to a 1 2 thick plywood 50 per 4x8 sheet.

Place a layer of 6mm polyethylene onto the concrete as your moisture barrier. Lay as many of these sheets as you need on the concrete to make the first layer of subfloor. Another way that involves less strain and hard work is to glue the plywood to the concrete. Using a hilti direct fastening tool shoot concrete nails into 1 2 inch plywood to apply directly onto concrete.