Plywood Subfloor Thickness Over Concrete

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Plywood subfloor thickness over concrete. 7 6 clean the plywood subfloor surface before you install the flooring. However if you are trying to add stability and strength to the subfloor look at thicknesses from 15 to 22mm. Make sure it is screwed and fixed at appropriate points usually a minimum 300mm centres. We recommend applying param 5500 at a minimum thickness of 3 8 1 2 is preferred to.

Plywood substrate in a kitchen. Use a spacer between the plywood and the wall and a 1 8 spacer. Installers developed systems that would now allow just about any type of decorative concrete floor to be installed over wood sub floors at a thickness around to. The original plan was to do a 2 concrete pour over our radiant heat system as recommended by our builder.

For nail down wood subfloors installed on grade and below grade add a moisture control system below the subfloor material. How to install a wood subfloor over concrete. Metal lath stapled over plywood substrate. Engineered or solid wood flooring that is less than 1 2 thick can be installed over a plywood subfloor.

To install a floated subfloor system first place a layer of plywood subfloor panels with the edges parallel to the wall. Use a minimum 3 4 23 32 18 3 mm 4 x 8 subfloor panels. We are hearing a lot of concerns from concrete contractors about pouring that thin. Subfloor thickness and floor drains.

Score the back of the panels the thickness on a 12 x 12 grid. Use a digital moisture detector to measure the moisture content mc of the concrete slab. The installation of calcium aluminate cement based self leveling concrete param 5500 along with expanded metal lath for reinforcement is a successful fast track method to convert a plywood subfloor into a beautiful concrete floor. Please send us information regarding the proper chemical to use to achieve the proper mix for the lightweight concrete.

Once you ve installed a vapor retarder install your subfloor. In recent years products have been developed that can be applied considerably thinner without losing any structural integrity. Interestingly the supply of plywood into the uk is extremely inconsistent at present and probably over the last few years. Concrete over a plywood subfloor with 16 on center floor joists.

Use nominal 5 8 19 32 15 1mm cd exposure 1 plywood subfloor panels cdx. The same as most traditional flooring types. Fasteners may be powder driven pins pneumatic driven nails screws deformed pins or other fasteners suitable for concrete application. Nail down subfloor system over concrete materials.

We are building a 2 story condominium complex with concrete slab on grade. A vapor retarder is recommended anytime solid wood flooring is installed over concrete.