Dehumidifiers work by removing moisture from the air and replacing it with dry air. Used in conjunction with fans and heaters they can speed up drying out a floor. The problem with using a dehumidifier to dry out a floor is that it will collect moisture from the entire room not just the wet surface.
While the wood flooring appears dry, water could have penetrated throughout the plank as you can't remove it with the wet vacuum. Use a dehumidifier placed at the highest setting possible to dry the floors. Place it in the center of the room and leave it on for at least 24 hours.
The drier the air, the faster the water will evaporate. Therefore, a dehumidifier will dry the air in a room, allowing for faster evaporation. Moving air, such as with a fan, will also speed up the drying process. If that doesn't work to dry the floor in a few days, you will need to move to more drastic measures.
Place a dehumidifier in the center of the room once all of the standing water is removed. Set it to the highest extraction setting possible. Turn it on and leave it running for at least 24 hours to pull moisture from the boards.
6. How long will it take to get the moisture under control? As long as the dehumidifier you choose is large enough for the area it is working in, and there are no specific damp problems, then a dehumidifier will normally reduce the humidity to the chosen level within a few days to a week.
So to recap, run your dehumidifier unit for at least 12 hours a day. This is a good rule of thumb. Again, it's okay if you don't stick to this schedule every day, but be aware that the more your family runs your dehumidifier unit the fresher and cleaner it will be all year long.
Why Floors Sweat
For most floors, condensation is the main reason for the sweating, especially in warm weather. When warm humid air from outside comes into contact with the cold concrete the air rapidly cools and condenses on the surface causing the wetness.
This process may take weeks, months or even an entire heating season. Sanding should not take place until all moisture levels have returned to normal. As a general rule of thumb, if there is a difference of 2% moisture content or more between the top-side and the underside of the flooring, it is not likely done drying.
Things like having multiple fans and dehumidifiers can speed up the process, but generally, you're looking at anywhere from 24 to 96 hours for your subfloor to dry out completely. You won't want to rush this process, because the goal is to remove all of the moisture so that it can't cause any further damage.
The dehumidifier can give you dry air, dry floor, and drywall. Although it can pull out the dampness extensively and ensure your home is no longer wet; a dehumidifier cannot drain water that is standing for inches deep.
How long should I run a dehumidifier after a flood? If possible, run a dehumidifier until porous surfaces in the space have dried out completely. It can take anywhere from two days to several weeks to dry out a flood-damaged building.
Generally, a dehumidifier set between 30% or 45% can dry out a crawl space in 8 to 10 hours. The exact amount of time to dry out the area depends on the size and moisture levels. You can use a dehumidifier to effectively dry out your crawl space after you've removed all debris and outstanding water.
For a solid floor as flooring acclimates to the space the initial cupping will subside and gapping will be the issue of the finished floor. In this case allowing the flooring to complete a heating season will likely fix the cupping as the elevated moisture will be removed by the heating and the flooring will flatten.
If the buckling is only minor, in many cases the boards might return back to normal. If the boards are still showing areas of damage and buckling, you'll need to replace them.
High Humidity
Especially in small and windowless parts of your house, like the bathroom and kitchen. Your wooden floor can absorb moisture from the air, and this will cause the wood to expand and to buckle. Fans and ventilation can reduce buckling, though.
Humidity—warm and humid air condenses into surface moisture when it comes into contact with the cool surface of your concrete floor or slab. Faulty/Missing Vapor Barrier—moisture from the ground can seep up and through the concrete.
Your hardwood floors would be at risk of warping, crowning, and buckling. So if you live in a place that happens to get humid, especially in the summer, then it's highly recommended that you get a dehumidifier. It could help you save money in the long run on repairs needed for your home.
Still, the leak can seep through floors, causing mold or even pest infestations. A flooring contractor or in-floor heating system specialist will use infrared thermal cameras on the floors to find the source of the leak and repair it, plus treat the area for mold.
You cannot get dehydrated by using a dehumidifier. People think that the heat from your unit will make you sweat and dehydrate, but this is not true. A dehumidifier will only removes moisture in the air, so it won't affect how much water is in your body.
Dehumidifiers draw excess moisture from the air, helping to combat condensation, prevent mould growth and reduce damp on walls. There are two main types of dehumidifier to choose from – refrigerant (also known as compressor) and desiccant.
In conclusion, the best place to keep a dehumidifier most definitely is the downstairs basement or upstairs close to the stairs. This is because the basement is the most humid place in your house. If there is any other moist condition upstairs, its source must be resolved rather than placing a dehumidifier.