Why do molds grow in your crawl space?

ByRobert Watson

Have you ever wondered why molds grow in your crawl space?

Crawl space is generally constructed for creating a firm foundation for your home. It is usually between 1 to 4 feet in height. And is used for installing ductwork, insulation, plumbing, electric wiring, and HVAC systems. Since it is an unoccupied shallow space it is usually dark and humid which makes it an ideal environment for molds to grow. 

Let us look in detail at the reason behind mold growth and why you should take professional crawl space repair help to stop molds from growing.

1. Moisture: 

Even if there is a presence of dry rot in your crawl space there has to be a source of water nearby. The water may seep in due to cracks in the wall, poor drainage, or groundwater flooding. Molds start growing when relative humidity is 50% and it starts increasing as humidity goes up to 70% or higher. Molds can also breed if there is enough moisture in the air. Moisture enters the crawl space through water vapor that passes through soil or concrete. 

2. Dirt: 

Dirt is also a breeding place for molds. Crawl spaces are usually covered with dirt and dirt has moisture. Thus moisture constantly evaporates and increases the humidity in your crawl space. This continuous wetness in the ground results in mold growth. However, it can be prevented by covering the crawl space with a polythene vapor barrier.

3. Water accumulation: 

Mold germinates in presence of water. Water can enter the crawl space due to different reasons.

  • Drainage problem

  • Leaks around HVAC ducts, pipes, and other plumbing fixtures.

  • Development of cracks in-ground walls and ceilings. 

  • Improper working of gutters and downspouts 

All the above issues will lead to water accumulation in crawl space causing mold problems. Thus a crawl space repair and replacing of fixtures is necessary to avoid water accumulation in the crawl space.

4. Crawl space vent:

Crawl space vents are responsible for the growth of mold in crawl space. Crawl space vents are usually built to allow outside air to enter and circulate in the crawl space to keep it dry and control moisture. But it works in the opposite way. 

In summer, the hot air that enters the vent is loaded with humidity. This hot air immediately cools down in the dark crawl space. The cool air loses its ability to hold moisture. Thus the relative humidity in the crawl space jumps up and moisture is released. The excess moisture falls on the surface of the crawl space in form of condensation. Slowly, this condensation will saturate the wood in your crawl space and result in mold growth.

How to identify mold growth in crawl space?

To find out whether molds have grown in the crawl space you need not basically crawl in. Following are easy signs of detecting molds in crawl space.

  • Water stains as well as green/pink/black spots around baseboards.

  • Musty smell

  • Rotting and decaying of crawl space

  • Discoloration of wood

  • The sinking of the floor above crawl space

  • Jamming of doors

  • White powdery substances on concrete walls, floor girders, and corners.

  • Symptoms of dust allergy, skin irritation

  • Ailments like respiratory illness, persistent cough, running nose, itchy eyes, pneumonia, and asthma.

How to prevent mold growth in crawl space?

  • Fix the problem of leakage and drainage.

  • Re-paint your concrete foundation

  • Insulate your concrete foundation walls

  • Repair foundation cracks

  • Encapsulate crawl space ground with a plastic vapor barrier.

  • Extend gutter drains 6 feet away from the house

  • Dehumidify the crawl space    

Read in detail how you can take care of your crawl space.

Conclusion:

Mold growth is a serious situation and should not be ignored. Earlier detection of the mold is important. Mold in crawl space spread quickly and weakens the foundation and also causes health issues. If left untreated the molds may start growing on first-floor carpeting. Hence in the long run it may lead to the collapse of the floor.

Prevention is better than cure. So even if the smallest sign of mold growth is visible quickly contact Guardian Foundation Repair Knoxville. We are professionals in foundation repairs. Our professional contractors offer expertise services such as basement waterproofing and wall repair, crawl space encapsulation, fixing exterior and interior leakages. 

From foundation issue to wet basement we get the right job done leaving no room for molds to enter. Our team of finest foundation contractors offers comprehensive foundation repair services in Knoxville, Johnson City, and East Tennessee. Our team will go at any length to ensure the right job is done. 

So secure your foundation today by contacting us at 865-675-4177. We are here to help.

Request us for a free estimate. For more details visit us at https://guardianfoundationrepair.com/