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Sealed Crawl Space

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Crawl Space Sealing in Greater Richmond

Why a Sealed Crawl Space is the Way to Go

Research results indicate that a sealed crawl space is a great moisture control strategy with impressive energy saving potential, as reported by Advanced Energy.

As opposed to what many building scientists believed years ago, new research has shown that vented crawl spaces create the perfect environment for mold growth, wood rot, insects and moisture problems.

A sealed crawl space is the perfect defense against these detriments, and has proven to also create a healthier living environment and reduce energy costs.

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Before and After

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After

Crawl Space Insulation & Vapor Barrier in Louisa, VA

Moisture and high humidity in this crawl space resulted in mold and mildew growth and damage to the insulation. The homeowner wanted to encapsulate the space, so our team set to work cleaning out the crawl space, air sealing vents, the rim band, sill plate, and any other openings through the foundation wall to the outside. They treated the microbial growth with an antimicrobial, installed a new CleanSpace Vapor Barrier, applied Foam Board insulation to the foundation walls, and installed a dehumidifier to regulate the relative humidity.
Before

After

Insulating and Sealing a Montpelier, VA Crawl Space

This homeowner in Montpelier was having moisture issues within the crawl space of their home. As a result of the excessive outside influence, their home was uncomfrotable and the energy bills were high. We encapsulated their crawl space using a CleanSpace Light vapor barrier to help seal off the earth's moisture from the crawl space. Then, we sprayed an inch and a half of closed-cell R-10 spray foam over the foundation walls. All penetrations and vents are also sealed, and the spray foam acts as an air barrier and vapor retarder, protecting the crawl space from the outside influence. With their crawl space encapsulated and insulated, the homeowner should enjoy a much more comfortable home with lower energy bills. If you are interested in sealing your crawl space or basement, then give us a call at . We'll help to keep the outside, outside!
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After

Crawl Space Encapsulation in Bruington, VA

This Bruington, VA client contacted us about repairing moisture damage in their crawl space. Moisture had caused mold and mildew growth, was absorbed in the insulation which held it against the floor joists, the material began to delaminate and fall away from the floor.

All debris and insulation was removed from the crawl space, microbial growth was treated, the vents, sill plate, & rim band were sealed, the foundation walls were insulated with closed cell spray foam insulation and a dehumidifier was installed to control the relative humidity. The homeowners no longer need to worry about moisture damage in their crawl space and have the added benefit of warmer floors in the winter and reduced drafts in the home.

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How a Sealed Crawl Space Works:

First, any outside moisture entering the crawl space is eliminated. Rainwater is prevented from entering the crawl space with the use of gutters and downspouts.
A foundation drain system is then used to control ground water. If the outside grade is higher than the the inside grade, waterproofing the exterior of the foundation is done.
Next moisture from the ground is eliminated. A heavy-duty crawl space vapor barrier is used to cover the soil floor, walls and pilings.(Read more about crawl space moisture control here).
All openings to the foundation exterior are sealed, and gaskets are installed around access doors.
Insulation is applied to the foundation walls, band joists and access doors.
Finally, a dehumidification system is installed to reduce the levels of humidity in the air and remove moisture in your crawl space.

Since the natural airflow in a home is from bottom to top, the air that is circulated back into the home from the sealed crawl space will be clean, dry air, creating a healthier environment.

Additionally, the air circulating back into the home is now conditioned air, reducing the need to heat or cool it, resulting in lower energy costs.

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