Plywood Over Concrete Garage Floor

How to install a wood subfloor over concrete with screeds.

Plywood over concrete garage floor. Engineered wood flooring less than thick and solid plank flooring 4 or wider cannot be installed directly to screeds so if you re installing our wide plank flooring you ll need to overlay a plywood over the screed system. I have wood heat so it stays dry in here. This can be a problem if the garage will continue to be used to store vehicles since it leaves you with a substantially raised lip at the doorway to the garage. In hindsight i would have used fire retardant treated plywood on top of the joists and then sealed the top surface of the plywood.

The foam insulation and two layers of plywood can add as much as 2 inches of height to the garage floor. 1 lay 5 8 tongue and groove t g plywood over 4x6 t g 1 extruded polystyrene ep boards. Learn how to install beautiful hardwood floors over a concrete slab. I say this because the concrete slab in my humble opinion has not held up as well as i would have liked it to over the past 25 years it has numerous cracks and sprawls.

Or 2 lay 5 8 t g plywood over delta membrane or similiar product like spycor. Could i use liquid nails to hold floor to concrete or is there something else i should do. For the second story a foamed type of lightweight concrete is being used over plywood for sound absorption between floors. Treated plywood to the concrete with concrete screws spaced every 16 in.

Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete. The garage has been here many years ive lived in it 3 years. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring. No plastic vapor barrier needed as ep acts as a vapor barrier.

Pre drill using a rotary hammer. It has cement floors and i want to do the plywood flooring cutting it to look like planks and then polyurethane over it to seal it. Get a comprehensive breakdown on which materials to use what to take into consideration and what steps to take for four subfloor systems. 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.

We are building a 2 story condominium complex with concrete slab on grade. Alternatively screw rows of treated 1x4s to the concrete 16 in. Duraamen s param 5500 goes on thin in a 3 8 to 1 2 thick application.