How To Make A Plywood Floor Over Concrete

Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring.

How to make a plywood floor over concrete.

The build up of water vapor will cause problems such as mold and mildew. Pouring concrete over plywood can be even more challenging than installing plywood over concrete. If any flooring is laid directly on the concrete floor the moisture will become trapped and continue to accumulate over time. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.

Treated plywood to the concrete with concrete screws spaced every 16 in. One way to attach plywood to a concrete surface is to screw it into place with concrete fasteners. It can be installed on top of concrete before hardwood flooring or another type of material is installed. Another way that involves less strain and hard work is to glue the plywood to the concrete.

We are building a 2 story condominium complex with concrete slab on grade. Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete. Alternatively screw rows of treated 1x4s to the concrete 16 in. Nevertheless this is not all that uncommon.

For the second story a foamed type of lightweight concrete is being used over plywood for sound absorption between floors. It might be done to create a subfloor for ceramic tile to be installed over an existing wood subfloor or for making a concrete countertop. If your floor is concrete use a concrete grinder for large open areas or a 4 inch or 8 inch angle grinder with a cup wheel attachment made for use on concrete. Also if the flooring is carpet or manufactured from organic material such as wood or laminate not only will mold grow but the floor will buckle and begin to lift and become unusable.

Learn how to install beautiful hardwood floors over a concrete slab.