/Hurricane-Consequences

Removing Mold Behind Cabinets After Water Damage

Find expert tips to fix and prevent fungal growth behind cabinets. Discover causes and solutions for a mold-free home.

Reviewed by Content Team

Head of Content, D. Gorenko

Updated June, 5

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How to Fix Fungal growth behind cabinets

  Immediate Steps  

  • Wear protective gear such as gloves, goggles, and a mask to avoid inhaling mold spores.
  • Ventilate the area by opening windows and using a fan if available.
  • Carefully remove any items stored behind the cabinets to clear the work area.
  • Inspect the cabinets and surrounding areas to locate the moisture source causing the fungal growth.
  • If possible, remove or loosen the cabinets slightly to access the space behind them.

  Tools and Materials Needed  

  • Protective gear (gloves, mask, goggles)
  • Plastic sheeting and painter’s tape to protect nearby surfaces
  • Bucket of warm water mixed with detergent
  • Bleach solution or a commercial mold remover (always follow the label instructions)
  • Scrub brush or sponge dedicated to cleaning mold
  • Spray bottle for applying cleaning solution
  • Rags or paper towels for drying the area
  • Dehumidifier if available, to reduce moisture in the area after cleaning

  Step-by-Step Cleanup Process  

  • Begin by drying out the area to stop further moisture accumulation. Use a dehumidifier or fan if you have one.
  • Cover floors and surrounding surfaces with plastic sheeting to protect them from the cleaning solutions.
  • Clean the fungal growth with the warm soapy water solution. Use the brush or sponge to gently scrub the area.
  • Apply the bleach solution or mold remover carefully. Let it sit for 10-15 minutes to ensure all spores are killed.
  • Scrub again if necessary and then thoroughly rinse with clean water.
  • Dry the area completely with rags and allow extra time for ventilation to prevent any new mold growth.
  • Once the area is dry, inspect to see if any treatments or repairs are needed to stop moisture accumulation.

  When to Call a Professional  

  • If you find that the fungal growth is widespread or deeply embedded in the wall or cabinetry, it may be best to call a professional restoration specialist.
  • Persistent moisture problems that cause mold to reappear might require an expert’s help to locate and repair leaks or humidity issues.
  • In cases where you identify a water leak behind the cabinets, consider calling a plumber to fix the source of moisture.
  • If electrical components or wiring are exposed due to the moisture, an electrician should be consulted.
  • A professional mold remediation service can handle extensive contamination safely and effectively.

  Safety and Insurance Tips  

  • Always wear proper protective clothing when handling cleaning chemicals or disturbed mold.
  • Ensure the space is well ventilated to avoid inhaling harmful spores or fumes from chemical cleaners.
  • If the fungal contamination is significant, consider informing your home insurance company as extensive damage might be covered under certain policies.
  • Review any chemical safety guidelines on the product labels to avoid skin or eye irritation.
  • Dispose of contaminated materials (rags, sponges, etc.) safely to prevent further growth or exposure.

  Additional Considerations  

  • After cleaning, keep an eye on the area behind the cabinets to ensure moisture levels remain low.
  • Regularly inspect and maintain areas with high humidity to stop fungal growth before it starts.
  • Remember that sometimes the issue might be an underlying structural or plumbing problem. If you live in an area with older construction or past water issues (for example, in St. Louis or Nashville), timely repairs can save you additional costs later.

What Could be Causing Fungal growth behind cabinets

 

Excess Moisture and High Humidity

 

Fungal growth thrives in damp environments. When the space behind cabinets collects high levels of moisture or is exposed to consistently high humidity, fungi can establish themselves easily. This moisture might come from condensation, ambient humidity, or subtle seepage from surrounding walls.

 

Hidden Leaks and Water Intrusion

 

Leakage is a common and sometimes deceptive cause of fungal growth. Leaks from plumbing, roof, or even small gaps in the siding can allow water to seep behind the cabinets. Even minor water intrusion, if unattended, creates a perfect setting for fungi to grow.

 

Poor Ventilation

 

The area behind cabinets often lacks proper air flow. When air does not circulate well, moisture is trapped, and stagnant conditions promote mold and fungus development. Poor ventilation can be due to tightly installed cabinetry or obstructed air paths in older constructions.

 

Deteriorated Insulation or Ineffective Vapor Barriers

 

Improper or aging insulation and vapor barriers can allow moisture to condense on cold surfaces behind the cabinets. As water accumulates on these surfaces, it fuels the growth of fungus. This issue is particularly common in areas where temperature differences are stark.

 

Accumulation of Organic Material

 

Dust, grease, and food particles can settle behind cabinets over time. Such organic materials provide a food source for fungi. The gradual build-up of material, combined with moisture, creates an ideal breeding ground for fungal spores.

 

Temperature Variations and Condensation

 

Fluctuating temperatures can lead to condensation on surfaces behind cabinets. During cooler periods, warm, moist air may condense on cold walls or surfaces, thereby providing the damp conditions needed for fungal growth.

Conditions like these have been observed in homes across St. Louis and Nashville, where the interplay of humidity, construction methods, and local weather patterns contribute to fungus-friendly conditions.

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