Repair Water Damaged Floor — If you are reading this article, then the worst case scenario has probably occurred; water damage to your floor. Moisture is a killer for wood and laminate flooring, but there are methods for water damage repairs that can be accomplished with a few tools and intermediate carpentry skills.
Sand Water-Damaged Wood Flooring After drying a wood floor, you may have some concave or convex floorboards; this is called "cupping." Heavy sanding with a drum or orbital sander can actually "take down" some minor high areas. However, heavily cupped wood cannot be sanded down flat.
Wood flooring is usually the most susceptible to damage, although water can affect other types of flooring as well, especially if a small leak has gone unnoticed, or you've experienced a very large leak. Keep in mind, particularly if you didn't notice your water heater leaking right away, that you may have mold in the dry wall and/or flooring.
However, hardwood flooring does have one draw back, it can't stand up to prolonged exposure to water, so if water is allowed to stay on a hardwood floor the wood will be damaged (either stained or warped).
Here are a few steps that you can take to repair a hardwood floor that has suffered water damage. Step 1 - Remove Stains. If the water just managed to stain the hardwood, then you can remove the stain without a lot of other work. For this process, you can sand down the boards that are affected and then use oxalic acid crystals to remove the water stain.
The damaging effect of water on wood builds over time. By the time you notice a change in your wood floor, the water has already hurt the floor. One of the first signs that water has damaged your floor is cupping of individual planks, or crowning of several planks, creating a hump in the floor.