Building A Subfloor Over Concrete

One of the simplest options is a sleeper based subfloor.

Building a subfloor over concrete.

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. When direct gluing a wood subfloor over concrete follow the adhesive manufacturer s recommendation for moisture requirements and limitations type of adhesive application method trowel notch type and spread rates. Additionally the underlayment is always a waterproof material that will create a waterproof barrier. The result is a subfloor that protects finished flooring from cold and damp concrete based floors.

There are several subfloor installation methods each with its own guidelines including. The national wood flooring association issues guidelines for installing wood subfloor over concrete. How to install a plywood subfloor on a concrete slab floated subfloor system. Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets.

Subfloors are strong versatile and very durable. Follow these installation guidelines when installing a wood subfloor. Duraamen s param 5500 goes on thin in a 3 8 to 1 2 thick application. When the adhesive requires add a moisture control system before applying the adhesive.