What is acceptable moisture level in crawl space?

As a general guideline, you should keep the humidity level in your crawl area below 55%. Depending on where you reside and what season you are in, this intensity may vary slightly. However, it’s a good idea to keep track of the humidity level all year.

Should I keep my crawl space vents open or closed?

Crawl space vents should be kept closed and protected from the outdoors at all times. … Open vents, first and foremost, allow moisture to enter your crawl space. This offers the ideal habitat for fungi and mildew to thrive.

What are the cons of encapsulating a crawl space?

When it comes to crawl space encapsulation, there is a monetary factor to consider. … For your new system, you may need foundation wall insulation. … Additional maintenance expenditures must be included in. … It’s possible that you’ll need to upgrade your HVAC system.

Which is better vented or unvented crawl space?

Unvented. The main advantage of a vented crawl space over one that isn’t is that venting can help to reduce radon and moisture-related decay dangers by diluting the crawl space air. Providing a ventilated crawl space may also make sense in flood-prone places, such as hurricane-prone coastal zones.

Should crawl space vents be open or closed in summer?

In the summer, these vents allow outside air to circulate beneath the floor, preventing moisture buildup that promotes mildew and decay. The vents are closed in the winter, when the air is dryer, to prevent the pipes in the crawl space from freezing.

Can you dehumidify a crawl space?

Installing a crawlspace dehumidifier is the best way to keep moisture levels under control. Your below-grade space will be drier, cleaner, healthier, and more energy efficient with this system.

Should a crawl space have a vapor barrier?

Yes. In your crawl area, you’ll need a vapor barrier. Furthermore, a moisture barrier is the bare minimum of protection that your crawl space should have. A vapor barrier can help you prevent costly repairs.

Should I put plastic down in my crawl space?

A plastic cover or vapor barrier is essential, especially in a crawl space with a dirt floor. Moisture will travel to the surface of the earth without a vapor barrier, causing major issues in the crawl space, including fungi and perhaps structural rot. The plastic should completely cover the floor.

Does a sealed crawl space need a dehumidifier?

A drying mechanism is required in every encapsulated crawlspace. A dehumidifier is our choice (we’ll explain why in a minute), but contractors frequently use the “supply air” method to dry your crawlspace. Supply air may do a decent job of drying out the crawlspace in some homes.

Are crawl space dehumidifiers worth it?

A dehumidifier can help prevent fungi and mildew from growing in your crawl space, but it won’t get rid of it once it’s there. A dehumidifier, in fact, can spread fungi spores across the room and even into your home.

How long do crawl space dehumidifiers last?

When properly maintained, your crawl space dehumidifier can last anywhere from 3 to 5 years.

What humidity grows fungi?

High Humidity Fungi can only thrive in environments with a humidity level of 55 percent or above. Fungi may be controlled in your house by utilizing a dehumidifier and sufficient ventilation, which can lower the risk of fungi growth.

Is crawl space encapsulation tax deductible?

If not previously utilized, residents who install air conditioners, sealed crawl space systems, radiant barriers in attics, or more insulation may be eligible for a 10% federal tax credit up to $ 803-310-6330.

What temperature should a crawl space be?

When you lower the temperature to 70 degrees (the average crawlspace temperature), the humidity level in the air rises to 100 percent. About 40% of the crawlspace air enters the house, according to estimates. This has a big impact on the quality of your indoor air.

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Servicing Columbia, SC and Nearby Cities

Crawl space repair, crawl space encapsulation, and foundation repairs are all services offered by Attic & Crawl Space Solutions in Columbia, SC and the surrounding regions to alleviate moisture and fungi concerns.


Related Services in Columbia, SC

Please find a list of our most often requested services below. We can help if your crawl area is flooded due to a lack of a french drain or sump pump. We’ll make sure your crawl space stays clean, dry, and healthy if you require fungi removal due to excessive humidity levels.

Contact Information

Phone: 803-310-6330

Business Hours:

Mon-Fri: 8:00 AM – 5:00 PM

Sat-Sun: Closed



Crawl Space Vapor Barrier Installation

Installing a crawl space vapor barrier in the crawl area is a cost-effective solution to moisture management issues. Vapor barriers in the crawl space are used to prevent moisture, water, and damp air from entering the home via the floor. This helps to avoid the growth of fungi and mildew, which may cause structural damage and make living circumstances uncomfortable for your family!

Crawl Fungi Cleaning

One of the most critical tasks in resolving moisture management issues is to remove fungi from the crawl space. Fungi may rapidly become a serious problem in a house, and those who act immediately to clean up and remediate the situation will have a better chance of preventing it from spreading. You will save time and money if you remove the fungi before it spreads throughout your house.

Schedule Your FREE Crawl Space Evaluation!

Did you know YOU DON’T HAVE TO BE HOME for us to provide you with your 100% FREE crawl space inspection and report?