Floor With Low Spot

The process of fixing both an out of level and an out of plane.

Floor with low spot.

Before you install file flooring follow the directions above for fixing high spots and low spots in a wood or concrete subfloor. Level low spots or major voids using a self leveling compound or concrete patching mixture. You can see all imperfections best in a darkened room. Place it at the highest spot in the floor and slowly swing it around in a 360 degree circle.

Now as i walk through the house i feel a lot of low spots and the floor tapping on the concrete. Many contractors use a 6 foot level or accurate straightedge to help them locate high and low spots in a subfloor. A garage floor should have enough slope for it to drain but it should not have low spots that allow water to puddle. First issue i put a level on the floor and the biggest gap i saw was 1 8.

It s kinda driving me nuts. If you need to level low spots on your floor use a concrete patching compound. The low spots will be readily visible under the straightedge. Everything i read said not to worry about leveling if it s less than 3 16.

Choose a concrete floor grinder to remove high spots on a. Sanding the subfloor can remove minor swells or high spots in the wood but any low spots in the floor must be filled in order to level the plywood. Then vacuum the floor with a wet dry vac or sweep it with a broom. Plane refers to the flatness of the entire surface and any high and low spots must be remedied before installing rigid flooring.

Either of these products can be purchased at home improvement or hardware stores and should be mixed with water in ratios indicated on the package. In order to properly install hardwood floors the plywood subflooring must be even or level. Use builder s felt or shingles stapled to the floor to fill small low spots if you don t want to wait for leveling compound to dry. Dips or depressions in a subfloor are immediately identified using the six foot long straightedge.

Make a final check with the level to be sure all the high and low spots are gone.