Building A Subfloor Over Concrete

You need a dry clean and flat surface before you can install finished flooring in a room built on a concrete slab.

Building a subfloor over concrete.

To begin you ll need two layers of 3 8 inch minimum cd exposure 1 plywood subfloor panels. The underlayment exists to create an air filled gap between the concrete below and the subflooring which will help to insulate the floor and keep the room warmer. Subfloors are strong versatile and very durable. When the adhesive requires add a moisture control system before applying the adhesive.

Additionally the underlayment is always a waterproof material that will create a waterproof barrier. Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets. The national wood flooring association issues guidelines for installing wood subfloor over concrete. The result is a subfloor that protects finished flooring from cold and damp concrete based floors.

Duraamen s param 5500 goes on thin in a 3 8 to 1 2 thick application. Follow these installation guidelines when installing a wood subfloor. There are several subfloor installation methods each with its own guidelines including. When installed correctly your concrete over plywood floor will not permit moisture through will not warp or buckle and will come with all the benefits of concrete in an easy to care for floor.