Can you put subfloor over uneven concrete?

Can you put subfloor over uneven concrete?

Install A Flooring Underlayment Flooring underlayment is a layer of material put between the subfloor and the top floor covering to even out the surface underneath it. You can place it above subfloors made of wood as well as those made of concrete.

Can you level a concrete floor with plywood?

If you’re installing plywood over an existing dry concrete floor, you shouldn’t have any problem. However, a new concrete floor contains a lot of moisture. The moisture level of the concrete should be down to 5.5% before attaching the plywood subflooring.

How thick can self leveling concrete be poured?

QUIKRETE® Self-Leveling Floor Resurfacer (No. 1249-50) can be installed from 5/8 inch (16 mm) thick to a feather edge. For areas deeper than 5/8 inch (16 mm), apply QUIKRETE® Self-Leveling Floor Resurfacer (No. 1249-50) in layers no greater than 5/8 inch (16 mm) each.

How do you level a subfloor for laminate flooring?

To level a subfloor for installing laminate, follow the directions above to remove high and low spots. After vacuuming or sweeping the subfloor to clean it, add a plywood layer if the subfloor is in very bad shape, but do not overlap the sheets. A plywood layer is not necessary if you are putting down wood laminate.

Can you put plywood over concrete subfloor?

As with a floated subfloor, NWFA recommends a vapor retarder for glue-down subfloors when installing ¾” wood flooring over concrete. After installing a vapor retarder (if necessary), cut your plywood panels into 2’x8’ or 4’x4’ sections. The NWFA recommends plywood with a minimal thickness of ¾”.

Can you use self leveling concrete on plywood?

Once the plywood subfloor is covered, just apply the finish you want to achieve the desired look. You can also use self-leveling concrete on plywood as an underlayment for other types of floor coverings, such as carpet or tile.

How do I install wood flooring over concrete?

Check your flooring manufacturer’s recommendations to ensure you’re using a proper subfloor. As with a floated subfloor, NWFA recommends a vapor retarder for glue-down subfloors when installing ¾” wood flooring over concrete. After installing a vapor retarder (if necessary), cut your plywood panels into 2’x8’ or 4’x4’ sections.