Water causes the wood to expand and shrink.
How to fix bowed wood flooring.
Wood floors usually become warped because of water damage although too much sunlight can also cause boards to warp.
How to straighten a warped floor.
Again to bring the wood back to its normal shape you must concentrate on the concave section.
Warping manifests as gaps between the boards.
How to fix bowed floors.
Over the course of time this will lead to warping.
Sometimes even a nearby water source like flooding underneath the house can cause enough of a moisture imbalance to result in warping.
Most often a warped wood floor is caused by standing water or heavy moisture below the floor due to an unidentified leak or other hidden water source.
If water has seeped into the boards they may swell against one another which can cause the bow.
Sanding down a warped floor.
Many floor boards that are warped will need to be removed and replaced.
Wood responds to changes in temperature or humidity by warping and that can be bad news for your hardwood floor.
Just like in the other methods you should rinse the paper towels under water and wring out the excess.
Sand down the bump in your flooring until it is level with the rest of the floor.
The first method to fix a warped floor is to sand it.