Basement and Crawl Space Vapor Barriers in Cary

While the crawl space under your Cary home may not be your highest priority when it comes to improvements and repairs around your house, you may be surprised to find that if left untreated, moisture within your home's crawl space could end up harming your health and causing thousands of dollars in expensive repairs.

cary vapor barrier

Most homes' crawl spaces are only about 18 to 36 inches high with minimal airflow, and because the dirt under the home is almost always damp, moisture is continually evaporating under the home, especially during hot North Carolina weather. Due to the minimal flow and circulation, the humid air acts as a jumpstart to mold growth and wood rot. The air can also enter your homes through cracks and gaps in your home's subfloor and flooring - in fact, it's estimated that up to 40 percent of the air on your home's first floor is coming from your vented crawl space.

What Does a Vapor Barrier Do?

A vapor barrier is plastic sheeting that lines the ground of your crawl space to block water vapor from evaporating from the ground and entering your home. While evaporation from damp earth does play a role in the amount of moisture under your home, it's not the sole culprit. In fact, if your crawl space or basement is vented, a vapor barrier won't stop the warm, humid air from outdoors from entering through small cracks, crevices, or vents. Due to minimal to no airflow, the air will stagnate, causing the same problems.

Should You Choose a Vapor Barrier for Your Cary Home?

Whether or not you should rely on vapor barriers depends on where you live and what your climate is like. Most of the United States, with the exception of the dry and cold Upper Midwest and Northeast, is simply too warm and humid to get adequate moisture protection from a vapor barrier alone.

Vapor barriers simply can't seal the crawl space from all the moisture in your crawl space, so they're only slowing down mold growth and wood rot.

Depending on the climate you live in and the relative moisture in the air, most homes will need a more efficient and effective moisture deterrent that blocks all types of vapor from entering your crawl space or basement. In dry or cold climates, such as the Northeastern United States, Upper Midwest, and parts of Canada, homes that don't rely on the central air conditioning or exterior foam sheathing on the walls may find a vapor barrier to be adequate moisture prevention.

In the Southeast, including North Carolina, a vapor barrier isn't nearly as effective to block water vapor from taking its toll on your home in Cary.  Because our climate is so hot and humid for much of the year, a vapor barrier is insufficient to handle the day-to-day conditions of our extreme climate.

The Downside to Crawl Space Vapor Barriers

The reality is that most water vapor doesn't permeate through diffusion (meaning the evaporated moisture seeping through the solid floorboards and subflooring). Instead, it is more likely to come through in gaps and voids - meaning moisture is more likely to enter your home through cracks and vents in your crawl space, then find holes and spaces under your flooring to enter. That's why sealing is a much better option.

If you're only relying on plastic sheeting to keep your vented crawl space or unfinished basement dry, you may be surprised to find that humid and mold-laden air is still able to enter the area. Just like moisture from the ground, humid air from outside is just as disastrous for your home's structural integrity. Warm, damp places speed up wood rot and encourage insects and termites, and over time, this can cause your home's foundation and floor joists can become damaged or weakened, requiring professional floor leveling and intensive repairs.

Another factor to consider is that moist humid air from your crawl space of the basement is unhealthy and could even be dangerous. Unless you choose to completely seal your crawl space, the air that enters will end up moving through the rest of the house, carrying toxic mold spores and mildew that will require professional mold remediation. Spores can also enter your HVAC system and circulate through your home, triggering asthma attacks, allergy symptoms, headaches, and other chronic issues.

Protect Your Cary Home with More than a Vapor Barrier

You need a comprehensive solution to preventing moisture from entering your home from your crawl space, and that involves preventing airflow from bringing it in in the first place. To better protect your family from the harmful effects of poor moisture management, the experts at Crawl Space and Basement Technologies offer individual solutions for crawl space encapsulation. This totally seals all the cracks, crevices, and vents around the perimeter of your crawl space or basement as well as sealing the floor, keeping your home drier, healthier, and more comfortable!

Call Our Crawl Space & Basement Moisture Specialists in Cary

If you'd like to learn what options are available to ensure a drier crawl space or basement, schedule your no-obligation estimate, call us today at  (919) 847-7072 or fill out our online form.   We will visit your home to give you the most accurate price point for the job.  Our trained specialist will guide you through the options to determine the best solution for you and your budget.

What People Are Saying about Our Crawl Space Encapsulation

By the time we complete any crawl space encapsulation or moisture remediation project, our clients have determine that we deliver on our promise of outstanding service.

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  • Customer Reviews

    5.0Star Icon Star Icon Star Icon Star Icon Star Icon

    Excellent Service Provided!

    Your crew is professional, knowledgeable, customer oriented and committed. The work area was very clean after they finished. Your company exceeded my expectations!!
    Jim D
    Happy Customer
  • Customer Reviews

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    Keeps Things Clean

    Your company is very professional. Most companies do not clean up after themselves, so the homeowner has to do it! Your guys left the area very clean. Don’t let your sales rep go. He is very knowledgeable! Great Job! We
    Read All
    Your company is very professional. Most companies do not clean up after themselves, so the homeowner has to do it! Your guys left the area very clean. Don’t let your sales rep go. He is very knowledgeable! Great Job! We have given your information to our neighbors, so I am sure we will be seeing you next door very soon
    Charles R
  • Customer Reviews

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    One of the Best

    Your company was one of the only ones in the Triangle who was able to tell me how the job would be done that would meet NC Building codes and what the current industry methods/materials are. I did a lot
    Read All
    Your company was one of the only ones in the Triangle who was able to tell me how the job would be done that would meet NC Building codes and what the current industry methods/materials are. I did a lot of research..I know what I am talking about and would recommend Jason’s company to anyone needing encapsulation
    J.G.
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    A+ BBB Rating

    The sales rep was very professional in explaining what was required to fix the problem. That and you’re A+ rating with the BBB was the reason I chose you. The crew is friendly, punctual and knowledgeable. For those in need
    Read All
    The sales rep was very professional in explaining what was required to fix the problem. That and you’re A+ rating with the BBB was the reason I chose you. The crew is friendly, punctual and knowledgeable. For those in need of crawl space service, I would highly recommend this company
    Dan B.
  • Customer Reviews

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    Most Informative & Professional

    We had our crawl space sealed by a pest control company last year, but we had many problems and did not trust them to fix the problem. So, I got a total of 4 estimates from other companies and your
    Read All
    We had our crawl space sealed by a pest control company last year, but we had many problems and did not trust them to fix the problem. So, I got a total of 4 estimates from other companies and your company was by far the most informative and professional of them all. The crew was great. Very professional and your sales rep, Rob was very knowledgeable. Thank you for finally getting our crawl space problem fixed!!
    Bob S.
  • Customer Reviews

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    Jason was one of the most prepared and knowledgeable technicians I have ever dealt with. He followed up and answered all questions honestly..The crew was focused, courteous and informative
    C. S.
  • Customer Reviews

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    I appreciate the follow-up and great service after the work was performed. When we had the extremely heavy rains, the float stuck on the sump pump. Everything was resolved to my satisfaction. It is comforting to know that you all
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    I appreciate the follow-up and great service after the work was performed. When we had the extremely heavy rains, the float stuck on the sump pump. Everything was resolved to my satisfaction. It is comforting to know that you all back up your products and service
    Ronald R.
  • Customer Reviews

    5.0Star Icon Star Icon Star Icon Star Icon Star Icon
    You all had a very reasonable price and VERY good references! Thanks again for a professional job, and explaining how a crawl space is supposed to be done.
    Daniel S.
  • Customer Reviews

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    Rob was the only sales rep to talk to me about permits for my job and the work and materials meeting the building codes. I called many of the references on your list (that is a big list!), and what
    Read All
    Rob was the only sales rep to talk to me about permits for my job and the work and materials meeting the building codes. I called many of the references on your list (that is a big list!), and what they told me is the reason I chose you all for the job. They were right. You all did a great job!
    Hank C.
  • Customer Reviews

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    I got your name from Angie’s List and my realtor. I heard you guys were the best crawl space crew in the area. Great Work Guys!!
    James V.
  • Customer Reviews

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    Jason, Thank you for all of your work and support to make our crawl space area dry and secure. Your responsiveness to any questions or issue is impressive and very appreciated. Thank you and your team for all of their
    Read All
    Jason, Thank you for all of your work and support to make our crawl space area dry and secure. Your responsiveness to any questions or issue is impressive and very appreciated. Thank you and your team for all of their hard work and support!
    M.B.
    • Did you know?
    CBTofNC in Business for over 30 years

    Did you know that 50% to 60% of the air on the first floor of your home comes from your crawl space or basement?

    Excess water intrusion can cause severe damage to the structure of your home and create high levels of moisture and humidity, which leads to mold. Allergies, asthma and skin irritations can be affected by abnormal levels of humidity, moisture and mold in your living environment.

    Crawl Space & Basement Technologies specializes in Sealed Crawl Spaces and Interior Drainage Systems for your Crawl Space or Basement. With our Lifetime and Transferable Warranty, we not only improve the air quality of your home but also restore the microbial remediation certification structural stability of the home’s foundation. Our team of crawl space and basement experts can help you determine the necessary solution for your home and your budget.

    We offer a comprehensive line of services designed to protect your home and to prevent moisture problems and damage. Count on our Raleigh Crawl Space and Basement specialists for crawl space encapsulation, crawl space waterproofing, basement waterproofing, spray foam insulation, vapor barriers, and mold remediation.

    Do you need a Crawl Space or Basement Specialist?

    We will gladly come to your home for an estimate. Contact us today!