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Crawl Space Humidity 

In many North Carolina homes, crawl space humidity is a common concern that can lead to significant problems, from structural issues to health hazards. Tar Heel Basement Systems, with over a decade of experience, helps homeowners across the state effectively manage these challenges. Our skilled team conducts detailed inspections to pinpoint humidity sources and provides customized crawl space encapsulation solutions for lasting results. This guide explains the reasons behind crawl space humidity and how to resolve them with professional assistance. 

What is Crawl Space Humidity? 

Crawl space humidity is the excessive moisture found in the crawl space area beneath your home. This area, situated between the ground and your first floor, is susceptible to dampness due to its close contact with the earth. Humidity levels above 60% can lead to issues like: 

Addressing these issues is crucial for maintaining your home’s structural integrity and ensuring a healthy living environment. 

Causes of Humid Crawl Spaces 

Crawl space humidity in North Carolina homes can be attributed to several factors: 

  • External Humidity: Humid air from outside entering through vents. 
  • Water Intrusion: Groundwater seepage, leaks, and rainwater contribute to increased moisture. 
  • Damp Soil: Moisture from the earth permeates the air, especially in homes with exposed dirt floors. 
  • Inadequate Sealing: Unsealed vents allow humid outdoor air to enter and condense on cooler surfaces. 
  • Poor Climate Control: Insufficient insulation and waterproofing lead to condensation and moisture retention. 
  • Lack of Vapor Barrier: Absence of a vapor barrier permits ground moisture into the space. 
  • Ineffective Drainage: Standing water from poor drainage elevates humidity levels. 

Promptly addressing these factors is essential for preserving your home’s condition and the health of its occupants. 

Solutions for Crawl Space Humidity 

Crawl space humidity is a manageable issue but requires a comprehensive strategy for lasting results. DIY methods may offer temporary relief but are often inadequate for severe humidity. Tar Heel Basement Systems provides specialized crawl space encapsulation systems designed to permanently resolve humidity and moisture issues. Our solutions focus on moisture control at the source, ensuring a dry and healthy living environment. 

Tar Heel Basement Systems’ Approach to Crawl Space Humidity 

Our method includes: 

Our proprietary products are specifically designed to address crawl space humidity, offering superior performance compared to standard options. 

Why Address Humidity in Your Crawl Space Now 

  • Prevent Structural Damage and Wood Decay: Excessive humidity in the crawl space can weaken your home’s foundation and cause wood structures to rot, compromising the building’s stability and safety. 
  • Mitigate Health Risks Associated with Mold and Allergens: High moisture levels provide the perfect breeding ground for mold and mildew, which can lead to respiratory issues and allergic reactions for the inhabitants. 
  • Deter Pests: Moist environments in crawl spaces attract pests like termites and rodents, which can cause further damage to your home and pose health risks. 
  • Enhance Air Quality and Reduce Odors: Controlling humidity in the crawl space helps eliminate musty smells and improves the overall air quality in your home, creating a more comfortable living environment. 
  • Improve Energy Efficiency and Reduce Bills: Properly managing crawl space humidity ensures better thermal efficiency, reducing the strain on heating and cooling systems and leading to lower energy costs. 
  • Preserve Property Value: Addressing crawl space humidity issues not only protects the structural integrity of your home but also maintains or even increases its value in the real estate market. 

Taking immediate action against crawl space humidity is crucial for the longevity and health of your home; rely on Tar Heel Basement Systems for comprehensive and effective solutions. 

Contact Tar Heel Basement Systems for Effective Crawl Space Solutions 

Crawl space humidity poses a significant threat to both the structural integrity of your home and the health of your family. Tar Heel Basement System’s specialized encapsulation system is designed to significantly reduce humidity levels in crawl spaces, thereby preventing the growth of mold and other forms of moisture-related damage. Renowned throughout North Carolina for their precision and care, Tar Heel Basement Systems has become a trusted name among homeowners seeking to protect their properties.  

We offer free inspections, allowing homeowners to understand the extent of their crawl space issues and the best methods for resolution. By choosing Tar Heel Basement Systems, you ensure a safer, healthier home environment for you and your family. 


he ideal humidity level for a crawl space is typically between 40-50%. Maintaining humidity within this range is crucial for preventing issues like mold growth, wood rot, and poor air quality. To help achieve and maintain these optimal levels, we offer a range of solutions including professional-grade dehumidifiers and comprehensive waterproofing systems. If you’re unsure about the humidity level in your crawl space or need assistance in managing it, we encourage you to contact us for a free inspection. Our team of experts will assess your specific situation at no-cost and recommend the best course of action to ensure a healthy and safe environment under your home. 

The time required to fix crawl space humidity issues can vary depending on several factors, including the size of the space, the extent of the moisture problem, and the specific solutions implemented. However, at our company, we prioritize swift and effective solutions to minimize any inconvenience to you. Our encapsulation process, which is a highly effective method for controlling humidity, is typically completed within a few days. This quick turnaround time ensures that your crawl space is protected against moisture-related problems without significant disruption to your daily life.

Encapsulation has a profound impact on controlling humidity in a crawl space. This process involves sealing the crawl space with a vapor barrier along with waterproofing and dehumidification measures. By encapsulating the space, we effectively prevent external sources of water and damp air from entering, which are primary contributors to high humidity levels. This controlled environment significantly reduces the likelihood of moisture-related issues like mold growth and structural damage. In summary, encapsulation is a comprehensive approach that not only lowers humidity levels but also maintains them at a healthy and safe range, ensuring the longevity of your home’s foundation and the quality of the air within.

TarHeel Basement Systems Service Map

Our Locations

Fayetteville Location

3400 Walsh Pky, Suite 220
Fayetteville, NC 28311

Greensboro Location

611 Summit Ave, Suite 5
Greensboro, NC 27405

North Raleigh

208 Millbrook Rd. Suite C
Raleigh, NC 27609

Raleigh / Durham / Chapel Hill Location

3333 Air Park Road
Fuquay-Varina, NC 27526

Wilmington Location

2155 Enterprise Dr. NE
Leland, NC 28451

Winston-salem / High Point Location

2910 Griffith Rd
Winston-Salem, NC 27103