Mold Removal From Floor Joists In Basement

January 29, 2020 • Mold Remediation, Mold Removal

inspection on moldy floor joistsRemoving Mold Growth On Floor Joists In Basement 

Here at Mastertech, we get a lot of calls concerning visible mold growth on the walls of people’s basements. However, something that commonly gets overlooked is your floor joists and subfloor, also known as your “basement ceiling.” If you are seeing mold growth on your foundation walls, this could be an indicator of an underlying moisture issue. Make sure that you if there is mold growth on the walls, you look up and check your floor joists for mold as well. 

Basements are known for their damp, musty environment. Poor air circulation and excess moisture make basements the perfect breeding ground for mold and mildew development. Mold is an opportunistic organism. It can spread extremely quickly, as soon as 24 to 48 hours in the right conditions. Mold on foundation walls may indicate that the mold has spread there from another area, such as your floor joists.


What Is Causing Mold On My Floor Joists? 

mold removal from floor joistsYour average floor joist is made from wood, a porous building material. This means that any moisture can easily seep into it, causing moisture damage. As we all know, moisture damage leads to mold. There could be many sources of this moisture, including excess humidity, which is common in basements due to poor air circulation. Another source of moisture could be a leak or flood that happened on the main floor of the home. Water from that leak or floor could have seeped down into the subfloor and floor joists. 

It can seem intimidating trying to avoid mold on your floor joists and in your basement in general. Basements do tend to harbor moisture more than other areas of the home. However, there is some good news. Most floor joists can be effectively cleaned of mold and do not need to be removed altogether. 


Professional Floor Joist Mold Removal

Severe mold damage requires specialized removal and cleanup. If your home is experiencing mold on the floor joists and subfloor, don’t hesitate to contact the professionals. A professional mold removal company in your area will ensure a safe, effective cleanup, restoring your basement to pre-mold conditions. Mastertech’s professional mold remediation process includes:

  1. Containment of the areas of concern, along with covering and protecting all floors and belongings present in the area. This prevents cross-contamination to unaffected areas of the property. 
  2. HEPA filtered air filtration is used to keep the indoor air quality safe and clean during remediation.
  3. HEPA vacuums are used to remove surface mold spores from contaminated building materials. 
  4. An antimicrobial agent is used to destroy surface mold. This assists in the process of cleaning the surface of the contaminated area. 
  5. Application of a concentrated hydrogen peroxide solution to remove embedded mold roots. When there is mold present, the solution bubbles up. This is repeated until there are no roots left and it is no longer bubbling. 
  6. Treated areas are thoroughly scrubbed and wiped down to clean all contaminated building materials. 
  7. Re-HEPA vacuuming to remove any remaining spores & roots, ensuring that nothing was missed during the process. 
  8. Mold-resistant coating is applied in order to prevent mold regrowth.

Preventing Moldy Floor Joists & Basement 

moldy floor joists and subfloor in basementIn an ideal situation, you want to take every measure to prevent mold development before it begins. There are plenty of steps you can take to prevent moisture and mold damage on floor joists. You just need to know where to look. Moisture control is the best thing you can do to prevent mold in your basement. Keeping the moisture levels in your basement controlled can go a long way in preventing extensive damage. As previously mentioned, basements tend to be more moisture prone compared to other areas of the home. Employing the use of a dehumidifier can help prevent excess humidity in the area. The ideal humidity level in most properties is between 35% and 50%. Another step you can take is to ensure proper air circulation. This helps to prevent warm, moist air from becoming stagnant in the area. Keep the air flow regulated throughout the area. 

In the event of a flood or leak in your home, the best thing you can do is dry out the water immediately. As we discussed previously, mold can grow rapidly if moisture is left to seep into your building materials. Mold preventatives and moisture control don’t have to be as intimidating as it may seem. Protecting your basement and floor joists from mold doesn’t have to be such a daunting task. Simple, affordable adjustments to your home maintenance routine go a long way in making your basement less vulnerable to mold.

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