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Open Crawl Space Vents

Previously thought to offer air-circulation benefits, open crawl space vents are now replaceable with more efficient and safer alternatives. 

These common features in homes with crawl spaces often contribute to the very problems they were intended to prevent, such as moisture and poor air quality. Ignoring open crawl space vents can result in dampness, mold, pest infestations, and more in your home. 

With extensive expertise, Foundation Systems of Michigan tackles these challenges directly. Our skilled team is adept at converting your crawl space into a secure, moisture-free, and energy-saving area of your home using our exclusive crawl space encapsulation products, assuring long-term comfort and stability. 

This page will walk you through the background of crawl space vents, their detrimental effects, and the advantages of professional and tailored repairs for your home. 

What Are Open Crawl Space Vents? 

Open crawl space vents were originally established to meet building codes and stop moisture-related issues, based on past building codes. 

However, these vents often bring about more issues than they prevent. Open crawl space vents can result in: 

These problems can pose serious risks to your home’s structural soundness and your health. If you observe these indicators or spot open vents on your house’s exterior, it’s crucial to reach out to crawl space professionals like Foundation Systems of Michigan promptly. 

Why Your Home Has Open Crawl Space Vents 

Until the later part of the 20th century, incorporating vents into crawl spaces was widely acknowledged as a standard practice, believed to improve air flow and reduce dampness and excess moisture

This notion has been disproven over time. Presently, it’s understood that crawl space vents are more likely to exacerbate these issues rather than alleviate them. 

Studies in the 1990s demonstrated that these vents allow moisture entry and reduce a home’s energy efficiency, complicating the maintenance of a steady indoor climate. 

As a result, the use of crawl space vents has seen a significant decline in recent decades. Building regulations are evolving to include vent sealing and crawl space encapsulation. 

Now, sealing these vents is a recognized step in enhancing crawl space conditions. This method is seen as more advantageous, fostering a healthier environment within the crawl space, especially when combined with artificial air circulation. 

Can You Fix Open Crawl Space Vents? 

Certainly, open crawl space vents can be effectively remedied. However, a mere superficial cover is insufficient; a comprehensive home solution is vital for long-lasting outcomes. 

Addressing this issue requires a comprehensive approach, taking into account every aspect of your crawl space. Sealing crawl space vents as part of a complete encapsulation system can transform your humid, unhealthy crawl space into a clean, dry, and conditioned area. 

The experts at Foundation Systems of Michigan boast over a decade and a half of experience in resolving crawl space moisture issues and providing permanent solutions. We are adept at identifying the core problems in your home and implementing comprehensive repairs tailored to your needs. 

How to Fix Open Crawl Space Vents 

The most straightforward method to tackle open crawl space vents is through crawl space encapsulation. This process involves more than just blocking the vent or covering it. 

Foundation Systems of Michigan’s step-by-step crawl space encapsulation process includes: 

By selecting Foundation Systems of Michigan, you choose a customized solution supported by our proprietary products, designed to surpass and outlive other options. 

Why Address Open Crawl Space Vents Now 

Addressing open crawl space vents promptly is crucial for several reasons, including: 

  • Avoiding Structural Damage: Early intervention prevents expensive repairs. 
  • Improving Indoor Air Quality: A sealed and dry crawl space ensures a healthier living environment. 
  • Boosting Energy Efficiency: Effective insulation and sealing results in significant energy savings. 
  • Deterring Pest Infestations: Pests are less attracted to a dry crawl space. 
  • Increasing Property Value: Homes with resolved crawl space issues are more appealing to buyers. 

Foundation Systems of Michigan’s specialized solutions merge expertise with premium products to deliver industry-leading outcomes. 

Contact Foundation Systems of Michigan for Dependable Crawl Space Solutions 

If your home has open crawl space vents, don’t delay in addressing the issue. Foundation Systems of Michigan offers the necessary products, diagnostics, and expertise to fully encapsulate your crawl space. 

We will examine your crawl space, identify the root causes of damage, and provide long-lasting solutions customized for your home. Our proprietary products and comprehensive home approach distinguish us from standard encapsulation kits. Reach out to us today to arrange a free crawl space inspection and a no-obligation repair estimate. 


While DIY covering of crawl space vents is feasible, professional services guarantee a thorough and lasting solution. Foundation Systems of Michigan’s process involves complete waterproofing and encapsulation of the crawl space, not just sealing or covering the vents. Contact us to discover more and to schedule a free crawl space inspection.

The timeframe varies depending on the condition of the crawl space and the solutions applied, but typically the project is completed in a few days. The crews at Foundation Systems of Michigan work diligently to reduce disruption. Find out more and get a no-obligation estimate and an accurate project timeline during a free inspection.

The expense depends on the size and state of your crawl space, as well as the specific repairs required. However, investing in Foundation Systems of Michigan’s professional solutions ensures value and enduring results. We offer free inspections, no-obligation repair quotes, transparent pricing, and various financing options. Reach out to us for more information.

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