Crawl Space Encapsulation in Cary, NC
Crawl Space Encapsulation in Cary, NC
Protect Your Home with Expert Moisture Control
A healthier home begins beneath your feet. At Triangle Radiant Barrier, we provide professional crawl space encapsulation services in Cary, NC designed to protect your home from excess moisture, mold growth, foul odors, and poor indoor air quality. With Cary’s naturally humid climate and frequent temperature swings, local homes are especially vulnerable to moisture-related crawl space issues. Our proven encapsulation systems seal and condition your crawl space, creating a stable, dry, and energy-efficient environment for your entire home.
If you’ve noticed musty odors, high humidity, uneven floors, or temperature inconsistencies, your crawl space may be affecting the air you breathe. An encapsulated crawl space not only protects the structural integrity of your home but also improves comfort and reduces health risks associated with mold, mildew, and allergens
Managing Moisture to Protect Your Home
Why Crawl Space Encapsulation Matters in Cary, NC
Your crawl space plays a major role in your home’s air quality, comfort, and long-term durability. Because nearly 40% of the air inside your living space comes from the crawl space, whatever happens beneath your home affects your health and your wallet. This is especially true in Cary, where warm weather patterns, dense clay soil, and seasonal humidity all contribute to moisture buildup.
A properly encapsulated crawl space shields your home from these issues by preventing moisture intrusion, stabilizing humidity, and controlling air movement.
Comfort That Saves All Year
Protect Your Home from Mold & Moisture Damage
Cary’s warm climate means your home is constantly exposed to humidity. Without crawl space encapsulation, that moisture collects below your home, creating the perfect environment for mold and mildew. By sealing vents, installing a crawl space vapor barrier, and conditioning the area, our encapsulation process eliminates the conditions that lead to mold growth and structural damage. Crawl space encapsulation provides the long-term moisture control your Cary home needs to stay safe.
Our crawl space encapsulation process eliminates these conditions by:
Sealing all foundation vents
Installing a durable crawl space vapor barrier
Removing moisture through air induction or dehumidification
Addressing existing mold with professional remediation
By eliminating humidity and moisture, we help prevent:
- Mold and mildew
- Rust
- Structural damage
- Wood rot
- Pest infestations
- Musty odors
Keeping moisture under control increases your home’s lifespan and protects your family from harmful contaminants.
Cleaner Air Starts Below Your Home
Improve Indoor Air Quality in Your Home
Indoor air quality is one of the most overlooked benefits of crawl space encapsulation. The air in your crawl space naturally rises through your home due to the stack effect, bringing pollutants along with it. In many Cary houses, this air contains:
- Mold spores
- Mildew
- Dust and allergens
- Pest residue
- Damp insulation fibers
- Rust particles
Once these pollutants enter your living space, they can worsen allergies, asthma, and respiratory issues.
Encapsulation stops this airflow by sealing the crawl space, removing contaminated insulation, and eliminating pathways for pollutants to spread. By adding a vapor barrier, air sealing materials, and humidity control, we create a clean, controlled environment beneath your home.
We also apply a natural deodorizing treatment to eliminate lingering odors caused by decaying debris or moisture. The result: cleaner, fresher air throughout your home.
Essential Crawl Space Care
Our Crawl Space Encapsulation Options for Cary, NC Homes
Triangle Radiant Barrier offers three highly effective solutions, each tailored to your crawl space condition, moisture levels, and long-term goals. Every option includes expert installation of a crawl space vapor barrier, full moisture control, and professional sealing.
Crawl Space Encapsulation Option #1: CrawlBarrier® System
Crawl Space Encapsulation Option #2: Closed-Cell Spray Foam System
Crawl Space Encapsulation Option #3: Bora-Foam® Rigid Foam Board System
A Long-Lasting Vapor Barrier Solution
Crawl Space Encapsulation Option #1: CrawlBarrier® System
Our CrawlBarrier® encapsulation system is ideal for Cary homeowners who want long-lasting moisture protection without removing existing insulation.
This process includes:
- Installing a High-Quality Crawl Space Vapor Barrier
We install a polyethylene vapor barrier across the crawl space ground.
Options include:
- 10-mil
- 10-mil reinforced
- 12-mil reinforced
- 16-mil reinforced
All options exceed standard building code requirements and offer exceptional strength and tear resistance.
The vapor barrier is:
- Secured with heavy-gauge galvanized staples
- Wrapped around foundation piers
- Adhered to the perimeter walls
- Taped at all seams and piers for airtight protection
- Sealing the Crawl Space Walls
CrawlBarrier® is then mechanically fastened to the crawl space walls, blocking humid outside air. Foundation vents are sealed using foam board and spray foam to eliminate air leaks.
- Moisture Control
We complete the system with either:
- A dedicated crawl space dehumidifier
- Air induction from your HVAC system
This ensures your crawl space stays dry and stable year-round.
Maximum Moisture Protection
Crawl Space Encapsulation Option #2: Closed-Cell Spray Foam System
This option is ideal for crawl spaces with failing or contaminated insulation.
Remove Old Fiberglass Insulation
- Step 1:
We remove all damaged or moldy fiberglass insulation from your Cary crawl space to eliminate contaminants.
Install the Vapor Barrier
- Step 2:
Just like Option #1, we install your choice of vapor barrier thickness and seal it properly to walls and piers.
Seal Crawl Space Walls with Closed-Cell pray Foam
- Step 3:
We apply 2″ of closed-cell spray foam to:
- Perimeter walls
- Rim joists
The sill plate and the area 3″ below remain exposed for termite inspections.
Closed-cell spray foam provides:
- Superior air sealing
- Exceptional moisture resistance
- High R-value insulation
- Long-term durability
Condition the Crawl Space
- Step 4:
We complete the project with proper moisture removal using air induction, a dehumidifier, or both.
A Cleaner Encapsulation Alternative
Crawl Space Encapsulation Option #3: Bora-Foam® Rigid Foam Board System
What Makes Bora-Foam® Unique?
- Pre-treated with borate for termite resistance
- Pre-laminated with a 3-mil vapor barrier on each side
- Installed with concrete anchors and sealed with foam spray
- Taped along all seams for complete encapsulation
- Applied to rim joists for full air sealing
The sill plate and the area 3″ below remain exposed for termite inspections.
Proven Solutions for Cary Homes
Why Cary Homeowners Trust Triangle Radiant Barrier
We are local specialists dedicated to helping Cary families create healthier, more energy-efficient homes. When you choose Triangle Radiant Barrier, you get:
- Licensed, insured encapsulation specialists
- High-quality materials rated for long-term durability
- Mold remediation expertise
- Odor elimination treatments
- Industry-leading customer service
- Transparent pricing and free estimates
- Solutions tailored to your home’s needs
Our team has helped hundreds of Cary homeowners eliminate crawl space moisture issues for good.
Healthier Air, Stronger Home
Ready for a Healthier, Dryer, More Comfortable Home?
A properly encapsulated crawl space is one of the most valuable investments you can make in your Cary, NC home. It enhances air quality, protects your structure, eliminates mold risks, and increases energy efficiency — all while giving you peace of mind.
Click below for a FREE estimate and crawl space evaluation. Triangle Radiant Barrier is here to help you create a cleaner, safer, and healthier home from the ground up.
Frequently Asked Questions
What is the best insulation for crawl spaces?
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?
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 guarantee and warranty on TRB’s encapsulated crawl spaces?
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.
Should I encapsulate my crawl space?
If you live in a humid climate, crawl space encapsulation offers many benefits:
- Prohibits mold growth
- Improves indoor air quality
- Improves energy efficiency by lowering the cost to heat / cool your living space
- Protects the home’s structural integrity
- Extends the service life of crawl space installed utilities (e.g. HVAC, water heater)
- Improves 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 the ability to moderate the relative humidity and ensure against any future mold growth. TRB also offers a ‘No Mold’ Guarantee to those Customers who subscribe to TRB’s Annual Service Plan.
TRB provides a limited lifetime warranty 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 the costs of 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 will provide moderate improvement to HVAC efficiency but substantially less than you’ll achieve by improving your attic’s air sealing and insulation. The benefits of crawl space encapsulation are most notable in terms improving your home indoor air quality, protecting your home’s structural integrity, and extending the service life of your crawl space-installed utility systems (e.g. HVAC, water heater).
If your primary concern is energy efficiency, you should consider improvements in your attic before your crawl space.
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 help moderate crawl space temperature and relative humidity. It is lower in cost to install than a dehumidifier and is sufficient in some crawl spaces. However, air induction’s performance may be hindered by the variable conditions unique to each crawl space and is also limited to only operating when the HVAC system is running. Air induction is most challenged during the shoulder seasons of spring and fall when there may be high relative humidity in the air but the temperature is too moderate for your HVAC system to be on.
A crawl space dehumidifier costs more to install but its performance is not subject to any conditional variables or on the HVAC system. A dehumidifier will provide much more assured and consistent performance than will air induction.
Air induction may be run in conjunction with a dehumidifier as well. This will provide the assured and consistent performance of the dehumidifier as well as the air induction providing better temperature moderation and decreasing the workload on the dehumidifier which, in turn, will increase the dehumidifier’s service life.
Why do I have mold in my crawl space?
Mold will grow in any space that has relatively high air moisture, warm to hot air, stagnant airflow, and no direct sunlight. All of these are present in crawl spaces in humid climates and why vented crawl spaces in humid climates are so susceptible to mold.
Does mold in my crawl space impact my indoor air quality?
Yes. In homes with vented crawl spaces, up to 40% of the breathing air in a living space originates in the crawlspace. The is due to stack effect (the natural movement of air ‘upwards’ through your home) as well as leaks in return HVAC ducts in the crawl space.
How do you remediate mold in a crawl space?
Crawl space mold remediation is generally conducted in two ‘phases’: 1) killing the mold and 2) removing the visible, accumulated mold growth on the treated surfaces and potentially the mold staining embedded in the surface as well.
Killing mold requires the application (typically spraying or fogging) of a chemical fungicide or using a specialized process such as Dry Ice Blasting (killing mold with extremely cold temperature).
Removing the visible, accumulated growth from the treated surface is typically done with HEPA Vacuum Scrubbing, Soda Blasting (pressure cleaning with high pressure baking soda), or Dry Ice Blasting (pressure cleaning with high pressure dry ice).
Proper personal protective equipment (PPE) is mandatory. A HEPA Air Scrubber, sometime assisted by ventilation fans, is needed for all but very small remediation jobs. Any crawl space installed HVAC equipment should be turned off and left off for the duration of the remediation process.
Will mold in my crawlspace cause long term damage to the structure of the home?
Once mold is present, it will continue to be present and grow until it is remediated and the environmental negative conditions rectified. Mold consumes organic matter, such as wood framing in homes which will increasingly compromise the structural integrity of the home, if left unchecked