If you have access to a dehumidifier, place one near the wet floor at its highest setting to remove any remaining moisture. To isolate the affected area, you may consider using a tarp to block any cracks. When necessary, shut any doors to prevent the water from spreading further.
If water gets under laminate flooring, it can cause the planks to swell, warp, or lift. In severe cases, the flooring may need to be replaced to prevent further damage.
"Commonly, rising damp is treated with a damp proof course and penetrating damp with a blend of masonry repair and the use of damp proofing materials on affected areas," advise Timberwise.
Edit: Use a wet/dry vac to suck up as much standing water as you can - and get a dehumidifier going ASAP. Rent a floor fan to circulate air from the tool rental place. Cut open the subfloor in a small section to see if the moisture is under that.
If water gets under the vinyl flooring, it's important to lift the affected planks or tiles, dry out the subfloor, and replace the flooring to prevent mould or mildew growth.
To remove the standing water from your home, you need a device that will soak up the water and put it elsewhere. This is what a sump pump does. There are two types: pedestal sump pumps and submersible sump pumps.
Smell. Mold often emits a distinct, musty odor. If your home or business has developed an unexplained, persistent smell, it's a strong sign that mold might be lurking beneath your floors.
The first way that you can fix a subfloor moisture problem is by removing the finished floor and exposing the subfloor. Make sure that an HVAC system is installed or use a dehumidifier, and then, let the subfloor dry until the moisture levels have gone down.
Sponginess: If water becomes trapped under linoleum and sits for too long, it can cause damage to the subfloor. Damage to the subfloor will leave linoleum floors feeling soft and spongy. Curling: Water can cause linoleum to loosen and curl at the edges.
Dry the Subfloor:
Use fans, dehumidifiers, or even a wet-dry vacuum to dry water under laminate flooring and the subfloor. Ensure proper ventilation to accelerate the drying process. You can also use towels to absorb excess moisture.
Under laminate flooring, mold typically grows due to excess moisture or dampness, which can occur due to water leaks, high humidity, or poor floor installation.
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. Next, place fans around the room so the entire surface receives the blowing air. Place the fans at the highest settings possible.
Rock Salt. The most popular DIY dehumidifier is the one that works the best—rock salt. Rock salt naturally absorbs moisture out of the air, making it a great choice to use as a dehumidifier.
The most common and effective way to do this is by using a dehumidifier in tandem with fans to help draw out the air humidity and excess water quickly. Other common ways to dry out your concrete floor include, but are not limited to: Using a wet vacuum to suck up excess moisture.
Open windows and doors to help speed up the drying process. Use fans to move air around the damp walls. Also use dehumidifiers, which can help remove moisture from the air and walls. Professionals use tools like moisture meters, infrared imaging devices, dehumidifiers and heavy-duty fans.
DampRid crystals work immediately to absorb excess moisture from the air. The crystals harden and form a solid mass. Then they begin to dissolve and liquid will begin to drip into the bottom chamber. It may take a few days/weeks before liquid begins to drip depending on the humidity and temperature.
Increase air circulation by using fans and by moving furniture from wall corners to promote air and heat circulation. Be sure that your house has a source of fresh air and can expel excessive moisture from the home.
After this, you will need to remove the top floor — the floorboards of wood flooring, carpeting, tile, linoleum, or other flooring materials — so that the subfloor can be exposed to open air, which will dry it out. Dehumidifiers may help in this process by drawing out moisture.
To prevent condensation, you need to maintain optimal humidity levels in your home, which should be between 40% and 60%. You can use a dehumidifier, a humidistat, or a hygrometer to measure and control the moisture in the air. Leaks: Leaks can come from pipes, appliances, roofs, or walls.
Excess moisture and water under the flooring can deteriorate and soften vinyl planks. It can also lead to mold growth, setting up a potentially unhealthy indoor environment. Addressing surface-level moisture as well as any water damage under vinyl floors is essential to avoiding a worsening situation.