What happens if water gets under plank flooring?

Author: Abelardo Weissnat Sr.  |  Last update: Wednesday, October 15, 2025

Moisture trapped beneath the flooring provides an ideal breeding ground for mold and mildew. These microorganisms thrive in damp environments and can compromise indoor air quality. The presence of mold and mildew can also lead to health issues, especially for individuals with respiratory conditions.

What do you do if you get water under vinyl plank flooring?

Ideally you would remove some planks and run a dehumidifier until all is dry. You probably at least want to remove one row of plank to see how much water is still under, if you can, then decide if more removal is needed. If you remove properly, you can re-use them.

What happens if water gets underneath laminate flooring?

Delamination: Prolonged exposure to water can cause the layers of laminate to separate, a condition known as delamination. This can compromise the integrity of the flooring.

Can mold grow under vinyl plank flooring?

Mold Growth: Mold can thrive under vinyl plank flooring due to moisture. Health Risks: Exposure to mold can lead to respiratory issues, allergies, and more serious health conditions. Vinyl Plank Flooring: While durable and versatile, can be a breeding ground for mold if not properly maintained.

What happens if water gets under your floor?

Second, if the subfloor, crawl space or basement are excessively wet the moisture will eventually penetrate the bottom of the boards resulting in excessive expansion.. Not only does this harm the aesthetics of your flat floor, but it can also cause structural damage if left unaddressed.

If Your House Floods this is what will Happen to your Floor!

How long does it take for mold to grow under wet laminate?

Mold from trapped moisture on floors can start forming in as little as 24 hours. Vinyl, tile, laminate, and other water-resistant flooring can still sustain water damage and develop mold. Call a professional water damage restoration company as soon as signs of water damage are detected.

How long does it take for water to damage a floor?

As time passes, the moisture trapped within the wood creates an ideal environment for mold and mildew growth. Within 24 to 48 hours, mold spores can begin to colonize, posing health risks to residents and further compromising the structural integrity of the flooring.

How to tell if mold is growing under the floor?

One of the most apparent indicators of mold is visible damage to your flooring. Look for: Discoloration: Patches of yellow, green, or black can signal mold growth. Warping: Uneven or bulging floorboards suggest moisture buildup, a breeding ground for mold.

What destroys vinyl plank flooring?

Enemies of Vinyl Flooring
  • Dirt and Grit: Acting like sandpaper, dirt and grit particles can scratch the wear layer of the vinyl, especially at entryways and high-traffic areas. ...
  • Sharp Objects: Dropping sharp objects like knives or tools can puncture or gouge vinyl.

Should I put anything under my vinyl plank flooring?

To get the most out of your LVP you will want to consider what is underneath the flooring. An underlayment provides the proper support to make sure your LVP makes it the long haul.

Will wet subfloor dry out?

Sometimes, subfloors can be dried out from below, either from a lower level or a crawlspace. But if the water damage was too significant and there is no easy way to allow airflow to dry out your subfloor, it should be replaced.

What happens if you don t put moisture barrier under laminate flooring?

Instead of taking measures to install a vapor barrier, some DIYers elect to install their laminate floors without protection. This measure can prove costly, as moisture damage can quickly warp and possibly ruin a wide variety of materials.

How to get rid of water under flooring in basement?

The only way to stop water from coming up through the basement floor is by installing a drain tile system to collect rising moisture. Drain tile system – There are two types of drain tile systems: interior, and exterior.

How long will water under laminate dry out?

Allow Adequate Drying Time:

Allow the subfloor and the underside of the laminate planks to dry completely before reinstalling them. This can take several days, depending on the amount of water and the humidity levels.

Does vinyl flooring need to be replaced if it gets wet?

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.

Will a dehumidifier remove water from the under floor?

Even though your floor looks dry, chances are moisture is still lurking beneath the surface. Moisture can and will find its way into the cracks and crevices of your hardwood flooring. An easy way to remove moisture from your wood floors is to use a dehumidifier.

Can water penetrate vinyl plank flooring?

2)Improper Installation

Otherwise, correctly installed vinyl planks will stop water from penetrating and they withstand high humidity levels fairly well.

What is the life expectancy of vinyl plank flooring?

Generally speaking, vinyl sheet flooring will last anywhere from 10 to 20 years, while vinyl plank and tile flooring will last 15 to 20 years. The thickness of its wear layer vastly impacts vinyl flooring's lifespan, so pay attention to this detail when purchasing your flooring.

Can you wet mop vinyl plank flooring?

Avoid using stiff scrubbing brushes or your vacuum's beater bar (the rotating brush attachment that vibrates to loosen dirt from carpeting), as these cleaning tools can damage the surface of the floor. Wet-clean the floor using a damp mop and a vinyl-safe floor cleaner once you've eliminated any dry dirt and debris.

Can mold under flooring make you sick?

The most common health issue caused by black mold is respiratory. After prolonged exposure, you may start experiencing sneezing, coughing, or an itchy throat. High-risk individuals like children or the elderly could experience long-term health issues.

Does homeowners insurance cover mold?

Homeowners insurance doesn't usually cover mold damage or removal unless it's the result of a covered peril. If the mold in your residence was caused by something sudden or accidental, such as a bursting pipe or some other covered incident on your policy, you may be protected.

What kills mold under flooring?

Scrub the affected area with a mixture of hot water and soap. Use an appropriate mold and mildew cleaner to disinfect the area. You can also use a diluted bleach solution (mix 1 cup of bleach in 1 gallon of water). Spray this cleaning solution directly onto the moldy floor and allow it to sit for 10 to 15 minutes.

What to do if water gets under flooring?

If you have water under your floorboards, remove floor coverings and dispose of damaged paper products, dry the area, clean and disinfect the soaked floorboards, ventilate the room, and contact a professional like ServiceMaster of Lake Shore for complete restoration services.

Will insurance pay for water damage to wood floor?

Homeowners insurance generally covers water damage that's sudden and accidental. For example, if a pipe bursts or a washing machine overflows and damages your floor, you may be covered. But if the water comes from flooding, standard homeowners insurance typically won't cover it.

How do I know if I have water damage under my floor?

If sections of your floor feel bouncy or soft underfoot, it could indicate water damage beneath the surface. This is often caused by prolonged exposure to water that weakens the subfloor, which can lead to costly structural repairs if left untreated.

Previous article
What are the symptoms of a slab leak?
Next article
Is it safe to put curtains behind a radiator?