Have a Home With a Crawl Space? You Need a Vapor Barrier
Installing a vapor barrier, or replacing an old barrier, is an essential home improvement project that will keep your home safe from the scourge of water damage.
The Benefits of Crawl Space Vapor Barrier Installation
Protect Your Home from Water Damage
A crawl space with excessive moisture puts your home at risk for termite infestation, mildew, and mold growth. A vapor barrier passively reduces humidity to safe levels and is the ideal choice for most crawl spaces.
Improve Indoor Air Quality
A wet crawl space is the perfect breeding ground for mold and mildew. Spores can make their way into your home and may cause allergies or even illness.
Makes Future Repairs Easier
Our bright white vapor barriers not only prevent water vapor from building up in your crawl space, but also make working in your crawl space easier. Leaks from above will be easy to spot and anyone who dabbles in DIY repairs will appreciate the cleaner, brighter working conditions.
What People Say About Working With the Dragon
“Emit and his team are awesome! They respond quickly and call anytime there are updates etc. Their team does and great job and very straightforward and honest. We are very pleased with the work and professionalism. Thank you!”
– Crystal R.
“We used Dragon Vapor to place a vapor barrier in our crawl space. They were friendly, timely and professional. Definitely recommend them to anyone needing this type of service.”
– Beth H.
“Awesome company. They showed up on time and did excellent work for a reasonable price. Even came back later to bring me an insulation batt for the attic access door. Can’t recommend them enough.”
– Joseph M.
The Tale of Dragon Insulation
Dragon Insulation was started after we saw how common it was for people to live in underinsulated homes or in homes which suffer from perennial crawl space moisture issues. Our mission is to protect homeowners from extreme temperatures, help reduce your energy bills all year long, and provide improved indoor air quality!
We understand that choosing a contractor for crawl space repair is a big decision and we honor your choice with our unwavering commitment to customer service. Our licensed, insured, and uniformed crews are carefully selected for their demeanor, as much as for their skills, and will treat you and your home with the utmost respect.
Vapor Barrier FAQs
What are some signs that I may need a crawl space vapor barrier?
Crawl space humidity levels should be between 40 and 55% relative humidity. Higher than this and you may begin to notice some of the following symptoms:
- Mold proliferation
- Musty odors
- Pest infestations (including cockroaches and termites)
- Unusually high energy costs
- Wood rot, particularly on floor joists or supports
- Uneven or sagging floors
- Condensation on pipes and ducts
- Persistent allergies or illnesses
Depending on the severity of your moisture problem, a vapor barrier may be all you need. However, if there is standing water or limited airflow, then encapsulation (waterproofing and a crawl space dehumidifier) should be considered.
Do vapor barriers help against radon?
Yes, vapor barriers are an essential part of any radon mitigation strategy. However, a vapor barrier alone is generally not sufficient, and is used in conjunction with active ventilation.
Do vapor barriers help indoor air quality?
Yes, a vapor barrier can help improve the air quality inside your home. Your HVAC system creates suction in your home, drawing some air from your crawl space. These air leaks can result in moisture or even mold spores being pulled into your home. A crawl space vapor barrier will improve the air quality of your crawl space and consequently the air inside your home.
I was told that I need crawl space encapsulation, is a vapor barrier right for me?
If your crawl space has severe moisture problems, then a fully sealed crawl space (known as an encapsulated crawl space) might be your best bet. However, there are several companies on the market that only sell encapsulation solutions, which means that if a homeowner contacts them asking for a moisture barrier, they will tell them that they need encapsulation, even if a less expensive moisture barrier would have been sufficient.
It is essential to have an on-site professional assessment of your crawl space before making the decision to choose either a vapor barrier or encapsulation.
If you’ve been given a quote for encapsulation let us know and we can provide you with a free onsite evaluation and offer a second opinion about whether or not a vapor barrier would be right for you.
Does my crawl space need a vapor barrier or encapsulation?
In moist climates and areas with a shallow water table, nearly all homes with a crawl space will benefit from a vapor barrier.
In general, an encapsulated crawl space is preferable for crawl spaces with limited airflow or standing water. If your crawl space vents are blocked and outside air can’t make it in, or you have pools of water under your home, then you may need a drainage solution such as a french drain, sump pump, or gutter system.
If you’re unsure if you need a vapor barrier, we can provide you with a free inspection and see if a crawl space solution is right for you.
Is subfloor insulation a substitute for a crawl space vapor barrier?
No, while crawl space insulation is great for reducing your energy bills and keeping your home comfortable, it is not a substitute for a vapor barrier.
Part of the problem is that fiberglass batts and rigid foam insulation suspended between your floor joists are not airtight, meaning that air can still travel from your crawl space into your home.
Even if your floor was air tight, excessive moisture underneath your home will result in mold growth and make for a hospitable home for termites!
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Ready to start saving money on your utility bills? Schedule a time to get a free onsite evaluation and quote.