Can I Glue Plywood To A Concrete Floor

Wood and concrete don t play well together without a moisture barrier.

Can i glue plywood to a concrete floor.

Adhering plywood directly to concrete does not provide a barrier to stop moisture from absorbing into the plywood. Gluing plywood to concrete isn t a simple task especially if you are gluing large sheets to a vertical wall or even worse a horizontal ceiling. Answered february 23 2019 author has 3 3k answers and 4 1m answer views. On a concrete subfloor you could choose to orient the plywood in whatever direction works best for you.

You can tack on a layer of plywood to complete the subfloor before adding the finished flooring material. Concrete has moisture in it and your wood will mold and rot over time. There is a product you can buy from your local home depot store for putting under a floor over concrete. I don t remember what it is called but it comes in a roll 6 ft by 50 ft.

It can be installed on top of concrete before hardwood flooring or another type of material is installed. When installing a new floor over cement wood studs take on the role of floor joists. Plywood is often used as a sub flooring. Glue wood flooring to a concrete slab a plywood core makes engineered flooring the most stable choice provided the slab is flat and dry by ken fischer issue 170 if you want to install flooring on a concrete slab your floor covering choices are limited.

Don t glue the plywood to the concrete. One way to attach plywood to a concrete surface is to screw it into place with concrete fasteners. Another way that involves less strain and hard work is to glue the plywood to the concrete. Plywood can easily adhere to concrete.

Concrete isn t usually perfectly flat so the plywood will need to conform to the concrete s surface enough to allow the glue to bond to both the plywood and the concrete.