Crawl space ventilation is essential for maintaining a dry, healthy, and structurally sound home. Without proper airflow, moisture can accumulate under your house, leading to mold growth, wood rot, musty odors, and even pest infestations. Traditional open-vent systems often fail to address humidity effectively—especially in humid climates. That’s why modern solutions, like the ATMOX crawl space ventilation system, use intelligent technology to improve results. These systems monitor temperature, humidity, and dew point, then activate fans only when outside air can improve conditions inside the crawl space. This targeted approach avoids bringing in moist air and maximizes drying potential. Crawl space ventilation works well on its own or as part of a system that includes a dehumidifier. It’s also an excellent solution for homes with encapsulated or sealed crawl spaces that still need air circulation. A well-ventilated crawl space helps improve air quality, protects structural components, and reduces the risk of long-term damage.
Understanding the relationship between changes in season, geography, and dew point is crucial for maintaining a healthy crawl space environment. Managing moisture levels in your crawl space is important for maintaining the structural integrity and indoor air...
What is dew point and how does it affect your home? Dew point is the temperature at which air becomes saturated with water vapor and condenses into visible water droplets. This moisture can lead to issues such as mold, mildew, and poor indoor air quality in your...
What type of home foundation is best? There is no one-size-fits-all answer. There are several types of residential foundations, each with their own advantages and disadvantages. However, the best type of home foundation is dependent upon several different factors....
What is Indoor Air Quality? Indoor air quality (IAQ) has received a lot of attention over the last several years. The increased interest in this topic is likely due to the link between indoor air quality and your health. Additionally, the number of hours that we...
A dehumidifier is a great moisture reduction tool for the crawl space. However, the cost to run a dehumidifier can greatly impact your energy cost. How does a dehumidifier work? The dehumidifier’s internal fan pulls warm moist air in and then cools the air. Cold...
Why Does My Crawl Space Smell? It is no surprise that crawl spaces are often the culprit for bad smells in your home. These dark cool areas of your home are often dirty and can be a host for mold, bugs, animals and other issues. It is not a place we spend much...
A crawl space is an extension of your home. Therefore, a crawl space inspection should be performed to ensure there are no issues that have gone undetected. Issues inside a crawl space may affect the integrity of your home. Home Inspections Real estate...
Should crawl space vents be open or closed? Like we have frequently said before, the ATMOX answer is that “it depends.” What is the situation? What are you trying to accomplish? And, what type of crawl space setup do you have? Vents in a Traditional Vented Crawl...
Over the past several decades, construction preferences and styles have evolved and changed. In some styles, such as bungalows, minimal traditional and cape cod style homes from the 1920s to 1950s, the layouts stayed mostly within a rectangular frame. Once the...
What should my crawl space humidity be? Sounds like an easy question, but humidity is actually a little tricky and sometimes misleading. Why is that? Most people in the crawl space industry often forget that humidity is rH and that “r” is important to remember. It...
ATMOX focuses on a dew point comparison - not relative humidity. How do you explain dew point vs humidity?
Crawl space ventilation fans work as an excellent tool to dry a crawl space, BUT it is critically important to use them at the right time. If you’ve been researching crawl spaces before landing on this blog, your head is probably spinning. There are so many, many...