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Crawl Space Encapsulation in Garner, NC
Improve your home’s health and safety with our encapsulation services

We effectively seal crawl spaces to address the humid climate in Garner, NC, eliminating poor air quality and regulating humidity to prevent mold and other harmful elements.

Comprehensive Crawl Space Overhaul: Key to a Healthier Home

Encapsulating your crawl space creates a healthier living environment.

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Reason #1: Mold Prevention

Garner’s humid climate makes vented crawl spaces susceptible to mold due to high humidity, limited airflow, low light, and moderate to hot temperatures. Sealing the crawlspace with air induction or dehumidification helps prevent mold growth.

Reason #2: Enhanced Indoor Air Quality

Research indicates that about 40% of the air in your Garner home originates from the crawlspace. Vented crawlspaces often contain poor-quality air filled with mold, mildew, rust, wood rot, deteriorated insulation, pest residue, dust, pathogens, and vapors from decaying organic matter. This air infiltrates living spaces through the stack effect and HVAC duct leaks.

Sealing your Garner, NC crawlspace controls humidity, preventing the growth of mold, mildew, rust, and other harmful elements. Encapsulation eliminates the need for fiberglass insulation, removes it as an air quality obstacle, and prevents pests from entering your home. A high-quality vapor barrier adds extra protection against noxious vapors.

We use a natural deodorization spray in your Garner crawlspace, containing non-pathogenic bacteria and enzymes to consume decaying organic matter. A well-sealed crawlspace ensures the elimination of poor-quality air, directly improving your indoor air quality.

If your existing fiberglass insulation is in good shape, we can seal the crawlspace with CrawlBarrier®

Crawl Space Encapsulation Option #1: CrawlBarrier®

We start by installing a polyethylene vapor barrier on the crawlspace ground of your Garner home. Options include 10-mil, 10-mil reinforced, 12-mil reinforced, or 16-mil reinforced, all stronger than the 6-mil products required by building codes. The vapor barrier is secured with heavy-gauge galvanized liner staples, rolled up at the foundation piers and perimeter walls, and sealed using CrawlBarrier® and tape at all seams.

Next, we fasten CrawlBarrier® to the perimeter walls and tape all panel seams. We seal the space using foam board and foam spray at the foundation vents.

By using CrawlBarrier® along the crawlspace perimeter walls, we seal off the space from outside air. To manage residual moisture, we introduce either air induction or a dehumidifier as part of our conditioning process.

Crawl Space Encapsulation Option #2: Closed-Cell Spray Foam

We begin by removing the existing fiberglass insulation from your Garner, NC home. We then air-seal the subfloor, which acts as a barrier between the living space above and the crawlspace, ensuring all penetrations are sealed with foam spray.

Next, we install a new polyethylene vapor barrier on the crawlspace ground, offering options like 10-mil, 10-mil reinforced, 12-mil reinforced, or 16-mil reinforced. The vapor barrier is secured with heavy-gauge galvanized liner staples, rolled up at the foundation piers and perimeter walls, and sealed with spray foam and vapor barrier tape.

We then seal the crawlspace using 2″ closed-cell spray foam, applied to the crawlspace exterior wall and rim joists, leaving the still plate and the area 3″ below it exposed for future termite inspections.

To manage residual moisture, we introduce air induction, a dehumidifier, or both.

Crawl Space Encapsulation Option #3: Bora-Foam® Rigid Foam Board

This option follows a similar process to Option #2, but uses BoraFoam® Rigid Foam Board to seal the crawl space walls of your Garner property.

BoraFoam® is 2.5″ thick and anchored into the crawlspace exterior wall with concrete anchors. The seams are taped with vapor barrier tape, and the edges are sealed with foam spray. BoraFoam® is also installed on the rim joists and sealed with foam spray, leaving the still plate and the area 3″ below it exposed for termite inspections.

This foam board is pre-treated with Borate, an anti-termite additive, and comes with a 3-mil polyethylene vapor barrier on each side, totaling 6-mil thickness.

Compared to Spray Foam, BoraFoam® provides a cleaner look as it expands uniformly during application. As a cured foam board, it does not emit gases during installation, ideal for Garner homeowners concerned about chemical exposure.

Garner, NC Crawl Space Encapsulation Photos

Click on any of the images below to enlarge them.

Frequently Asked Questions On Crawl Space Encapsulation in Garner, NC

What is the best insulation for crawl spaces?

The best insulation options for crawlspaces are those that both insulate and air seal, such as rolled insulation (like CrawlBarrier), closed-cell spray foam, or rigid foam board (like Bora-Foam). Fiberglass insulation does not air seal, making it the least effective for a crawl space.

What is the best way to insulate a crawl space?

The best way to insulate a crawl space is by sealing the foundation vent openings and installing a product that insulates and air seals the foundation walls. This is best done with rolled insulation (like CrawlBarrier), closed-cell spray foam, or rigid foam board (like Bora-Foam). This insulates the crawlspace and extends your home’s thermal and pressure boundary to the crawl space, moderating crawl space temperature and humidity.

What is the average service life of crawl space insulation types?

Fiberglass insulation typically lasts about 10 years before needing repair or replacement. It deteriorates faster in a crawl space with high humidity, particulates, and rodent activity.

Insulation types that seal or encapsulate a crawl space are made with materials that do not deteriorate over time, such as rolled insulation (like CrawlBarrier), closed-cell spray foam, or rigid foam board (like Bora-Foam). These products generally last the life of the crawl space, with lifetime warranties against degradation or delimitation.

Should I encapsulate my crawl space?

In a humid climate, crawl space encapsulation offers benefits like:
  • Preventing mold growth
  • Improving indoor air quality
  • Increasing energy efficiency by reducing heating/cooling costs
  • Protecting the home’s structural integrity
  • Extending the service life of crawl space utilities (e.g., HVAC, water heater)
  • Enhancing your home’s resale value.

What is guarantee and warranty on TRB’s encapsulated crawl spaces?

With a dehumidifier installed, TRB guarantees the performance of its encapsulated crawl spaces in terms of moderating relative humidity and preventing mold growth. TRB also offers a ‘No Mold’ Guarantee to customers who subscribe to TRB’s Annual Service Plan.

TRB provides a limited lifetime warranty on installed CrawlBarrier insulation, closed-cell Spray Foam insulation, and Bora-Foam insulation, as well as on all 10-mil Reinforced or better vapor barriers. The warranty covers both labor and materials to repair or replace any degraded or delaminated products for as long as you own your home. The lifetime warranty is transferable to a buyer if on TRB’s Annual Service Plan.

Will encapsulating your crawl space improve HVAC efficiency?

Encapsulating your crawlspace moderately improves HVAC efficiency but less than improving your attic’s air sealing and insulation. Crawl space encapsulation primarily enhances indoor air quality, protects structural integrity, and extends the service life of utility systems in the crawl space (e.g., HVAC, water heater).

For energy efficiency, consider attic improvements before crawl space encapsulation.

Is air induction or a dehumidifier better for moderating crawlspace relative humidity?

Air induction uses a small amount of conditioned air from your HVAC system to moderate crawl space temperature and humidity. It is less expensive to install than a dehumidifier.

RECENT

Customer reviews

I am chair of the board of a small townhouse community in Chapel Hill. One of our buildings of has had crawlspace problems with moisture and falling insulation for years. We had periodically replaced the insulation which inevitably failed and the problem gradually worsened. When I first met with Brock Emmons my relief was palatable. He gave me a clear, concise, rational description of our problems - and he had solutions. Briefly Triangle Radiant Barrier did mold remediation, fully encapsulated the crawlspaces, and installed monitored dehumidifiers. Their team was prompt, efficient, courteous, and competent. Their work is protecting our home environment and investment. I highly recommend them.

Doris C.
Chapel Hill, NC