How To Prevent Moisture Under Vinyl Flooring?

How To Prevent Moisture Under Vinyl Flooring?

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Vinyl flooring is very strong and enough durable for high traffic areas. But vinyl is quickly damaged by standing water and moisture. Moisture can also come from your feet if standing for long periods without moving about often enough. To prevent moisture under vinyl flooring, you need to check your vinyl flooring subfloor. Most common symptoms of moisture under vinyl flooring:

  • Warping
  • Fade color
  • Buckling
  • Cupping
  • Rippling

If you notice any symptoms like this clean moisture from vinyl flooring and turn on the fan or heater. The heater quickly removes moisture from vinyl flooring and prevents further damage. The real problem of moisture under vinyl flooring is mold and mildew. If you see black or white powdery streaks under the vinyl flooring, it’s time to clean and dry the vinyl flooring area. To prevent moisture under vinyl flooring, you need to replace or repair the damaged subfloor as soon as possible.

Can Water Damage Your Vinyl Plank Flooring?

Vinyl plank flooring is popular water and spill resistant. But if standing water or moisture stays a long time on the floor it can cause water damage to vinyl plank flooring. If spills occur on your vinyl plank flooring, don’t panic. Clean this spill quickly with a little amount of water. Use rubbing alcohol or a steam mop to remove the tough spill. If you notice mildew or mold on vinyl plank flooring check probably your subfloor does not seal properly. Properly seal your subfloor as soon as possible to prevent water damage.

Problems occur  after laying subfloor or substrate:

Subfloor or substrate is the main reason for water damage to vinyl plank flooring. Take enough time to cure the concrete slab or safety purposes test the moisture level before installing the subfloor. Moisture under vinyl flooring also occurs for plumbing leakages, standing water, and flooding. Long time standing water attracts mold and permanently damages the flooring. These types of may problems occur even if you install flooring professional person. Moisture barriers under vinyl plank flooring prevent such problems. Some common causes of moisture under vinyl flooring:

  • Plumbing pipe leakages like toilet or bathtub
  • The leak in a washing machine
  • Ground surface moisture
  • Flooding

If you notice your problem matches the above mentioned problems take immediate action. Don’t wait because it will damage the flooring. Water can directly enter under the vinyl plank flooring and cause permanent damage. In this case, moisture under vinyl flooring quickly spread through the whole flooring area.

How to repair moisture damage vinyl Floors?

Water leaking from the subfloor or substrate may be repaired with a moisture barrier under vinyl flooring. You need to seal your subfloor or substrate with the proper materials. Repair Plumbing pipe leakage will permanently protect from moisture damage. The leak from the washing machine will cause moisture through the vinyl flooring. Flooding is another cause of moisture under vinyl flooring. Clean your subfloor and properly dry it after flooding which increases floor lifespan.

How To Prevent Moisture Under Vinyl Flooring?

Moisture under vinyl plank flooring leaves a permanent stain and decreases floor lifespan. Let’s see some solutions on how to Prevent moisture under vinyl flooring.

1. Use a vacuum cleaner:

Choose a wet dry vacuum cleaner that is clean dry and wet surface. Vacuum cleaners easily remove dirt, dust, and some liquid spills from the surface. The wet dry vacuum cleaner will not damage vinyl plank flooring. After cleaning the floor properly dry your surface, you may use a clean dry cloth. Now check your floor if notice any damaged surfaces replace only this plank.

2. Use Moisture Meter:

Use Moisture Meter to check the moisture level. Using a digital moisture meter you can check concrete, drywall, masonry, and wood surface. If your flooring cross normal moisture level firstly turn on the heater or some fans in the affected room. If the moisture level does not become normal within four days then check the subfloor.

3. Place dehumidifier:

For the basement surface use dehumidifier to remove moisture. Dehumidifiers remove moisture from the vinyl surface without damaging the surface. A smart dehumidifier will automatically shut down when it’s tank become full of moisture.

4. Check mold level:

If your floor faces a flood or standing water problem mold and mildew will grow after a certain period. Hire a person or purchase a mold kit to collect mold samples. If you see mold or mildew on the flooring surface then clean the floor immediately. If you can’t remove it with normal cleaning apply mildew killer.

5. Seal your Vinyl flooring:

If you notice moisture under vinyl flooring seal your vinyl plank flooring. The sealing process not only helps to prevent moisture under vinyl flooring but also increases the lifespan of floors.

6. Properly Ventilate the Room:

Properly ventilate and air out the affected area. Your floor will not dry properly if trapped moisture under vinyl planks flooring. To prevent moisture under vinyl plank flooring you need to remove trapped moisture.

7. Use Cushion Floor Mats:

Cushion floor mats help to absorb moisture & spilled liquid on your vinyl plank floors. The cushion floor mats absorb moisture from your vinyl plank flooring and prevent moisture damage.

Do you need a moisture barrier under vinyl plank flooring?

Yes, a moisture barrier under vinyl plank flooring protects your floor against moisture damage.  If you are confused do I need a moisture barrier under vinyl plank flooring or do you need moisture barrier under vinyl flooring continue the reading. When vinyl plank flooring has a floods problem seal your subfloor. Use the proper seal that will increase the lifespan of vinyl plank flooring.


Many people confused are moisture barrier needed under vinyl plank flooring. When you notice moisture under vinyl plank flooring clean your floor and use a room heater or dehumidifier to absorb moisture. If moisture does not remove check your subfloor, plumbing pipe, and home appliance leakage. Hopefully, these steps will help to solve moisture under vinyl flooring problems.

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