Building A Subfloor Over Concrete

Subfloors are strong versatile and very durable.

Building a subfloor over concrete.

Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets. How to install a plywood subfloor on a concrete slab floated subfloor system. You need a dry clean and flat surface before you can install finished flooring in a room built on a concrete slab. Follow these installation guidelines when installing a wood subfloor.

One of the simplest options is a sleeper based subfloor. Additionally the underlayment is always a waterproof material that will create a waterproof barrier. To begin you ll need two layers of 3 8 inch minimum cd exposure 1 plywood subfloor panels. 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.

There are several subfloor installation methods each with its own guidelines including. Duraamen s param 5500 goes on thin in a 3 8 to 1 2 thick application. 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.