Crawl Space Vapor Barrier Installation & Moisture Control

Creating dry, protected crawl spaces in Greater Greensboro, Raleigh, Durham, Winston Salem, Fayetteville and Wilmington North Carolina

When you think of a crawl space you probably imagine a mold, foul-smelling boarded up space beneath your floor boards. It is filled up with debris from floods, drooping insulation and probably a critter or two.

Unfortunately this is an accurate image of most crawl spaces. The end result is cold floors, mold & mildew, high energy bills and pests. At Tar Heel Basement Systems we fix these issues by encapsulating the crawl space with a vinyl vapor barrier. The area is sealed, insulated and protected leaving you with warm floors, clean airs and lower energy costs.

Before and After Installing Crawl Space Vapor Barrier
The homeowners realized within the first year of owning the home that the crawl space had a moisture and humidity problem. The thin vapor barrier was no longer protecting the home from musty odors, moisture and mold spores. Wanting to have the problem fixed by a reliable company, the Dobson, NC homeowners called Tar Heel Basement Systems. Tar Heel Basement Systems removed the failing vapor barrier, replacing it with the CrawlSeal System. Unlike the previous 6mil thick liner, CrawlSeal is … Continue readingDobson, NC Crawl Space Vapor Barrier Replaced »
The crawl space in this Jamestown, NC home had a musty smell that was beginning to linger to the living area above. The homeowners needed to have the problem addressed and permanently fixed. Tar Heel Basement Systems restored the crawl space by removing all of the drooping, damp fiberglass insulation and insufficient thin plastic that was barely covering the soil floor. The previous, faulty materials were replaced with X-Grade Crawl Space Insulation, CrawlSeal 20mil. liner and the Tar Heel Dehumidifier. … Continue readingJamestown, NC – Crawl Space Transformation »
Exposed dirt in the crawl space was causing the floor system of this Greensboro, NC home to be taken over by mold and mildew. The water vapor rising from the ground for an extended period of time had caused wood rot on the organic beams. Tar Heel Basement Systems prevented further damage to the floor system by installing the 20mil CrawlSeal Encapsulation System. The liner contains antimicrobial properties, preventing mold growth on the plastic. The home is now completely separated … Continue readingGreensboro, NC – Damp Crawl Space Causing Mold & Wood Rot »
This November, we repaired the structure of this home in Germantown, NC.
This older Bristol, VA home was recently renovated. The basement was the last remaining part of the renovation. Small cracks had formed along the basement wall and water intrusion became present after heavy rains. Wanting to have the problems fixed during the same time, the homeowners called, Tar Heel Basement Systems. Before the waterproofing could begin, the team stabilized the cracked walls using Carbon Fiber. Ten times stronger than steel, the Carbon Fiber fiber-reinforced straps provide instant stability to the … Continue readingBristol, VA- Basement Becomes Stabilized and Dry »
Horizontal and stair-step cracks formed along the basement wall years ago. Wanting to prevent the issue from worsening, the Vilas, NC homeowners installed three wooden support beams. Unfortunately, throughout the years, the wooden joists began to rot becoming more of a problem rather than a solution.  Providing permanent stabilization to the cracked wall, the Basement Wall Anchor System was the best option to straighten the bowing wall. Installed in just one-day, the weight of the wall was transferred from the … Continue readingFoundation Repair in Vilas, NC »
This home in Mocksville, NC had water leaking into his basement when it rained hard. Often times, when a basement has water intrusion, there tends to be basement structural issues as well. In this case, water had been building up along the outside of the basement wall for so long that it began to crack and bow inward. Tar Heel Basement Systems installed their patented BasementGutter System with a SafeDri™ Triple Sump Pump System to control the water leakage. To … Continue readingMocksville, NC – Basement Waterproofing & Basement Wall Stabilization »
The basement of this Robbins, NC church was experiencing a large horizontal crack along their classroom wall. Having a solution that would stabilize the wall and prevent the crack from growing larger was a requirement of the church. Tar Heel Basement Systems stabilized the cracked wall using the Carbon Fiber Wall Reinforcing System. The Fiber-Reinforced Polymer, known as Carbon Fiber, is 10 times stronger than steel and specifically designed to stabilize and prevent cracks from becoming larger along basement walls. The … Continue readingRobbins, NC – Cracked Basement Wall Stabilized »
This one story lake house on High Rock Lake, once a fishing cabin, is now being transformed into a vacation home. Unfortunately, the foundation of the home had been originally built incorrectly and had started to sag and slide towards a small creek connecting to the lake. Tar Heel Basement Systems offered him and his wife a price within his budget and a solution to last him years to come. Systems design specialist Sam Agnew, foreman Josh Watson and his … Continue readingHigh Rock, NC Lake House Made Safe and Sturdy for Renovation »
Three major components were causing this Clemmons, NC retaining wall to lean out. Tree roots, unstable backfill soil and hydrostatic pressure over the years had caused the brick wall to become a worry for the homeowners. Tar Heel Basement Systems was able to stabilize the retaining wall using the Basement Wall Anchor method. Galvanized steel earth anchors and rods were connected to star anchors along the wall to prevent further movement. The leaning wall was immediately stabilized using Basement Wall … Continue readingClemmons, NC- Leaning Retaining Wall Stabilized »

Benefits of Vapor Barrier Installation

For years it was a building code requirement that crawl spaces be vented. This mistake is the reason warm, humid air can enter your crawl space resulting in condensation, moisture and mold damage. In the winter frigid air fills the space making your floors cold. Sealing the vent covers, adding proper insulation, encapsulating the area with heavy-duty vapor barrier and installing an energy-efficient dehumidifier is the answer.

By sealing the open vents and encapsulating the space with heavy-duty vapor barrier the crawl space is protected from moisture. The crawl space insulation helps keep your floors warm. Add an energy-efficient dehumidifier into the sealed space and the relative humidity is controlled preventing moisture and mold. You end up with warmer floors, lower energy bills and no mold or moisture problems.

Mold and Moisture Control

Mold needs warm air, organic material and moisture to grow. Vented, dirt floor crawl spaces provide all three. Mold grows well between 60- 80 degrees Fahrenheit. Fighting the temperature in the crawl space would require blowing treated air into the space. Why would you pay to heat or cool air only to blow it into an area no one lives in. What a waste of time and money; so attacking the temperature is out.

Mold can grow on wood, drywall and paper because they are all organic materials. Mold cannot grow on inorganic materials like plastic or vinyl. Chances are your floorboards are made of wood not plastic. You are not going to tear out the entire base of your home to replace it with inorganic material so this idea is out as well.

That leaves us with moisture, something mold needs to grow. This we can control. We seal all the open vents in the crawl space walls. This prevents humid air from easily entering. We then encapsulate the area with vinyl vapor barrier which stops any air or water from seeping in through the ground. The final step is installing an energy-efficient dehumidifier (designed for the crawl space) that controls the relative humidity of the air in the space. If the relative humidity is kept low enough and no water can enter the crawl space your crawl space will be mold free!

The end result is a moisture controlled crawl space protected from mold and rot. No need to worry about musty smells or structural damage resulting from humid summer air. No more Mold or Moisture Problems.

Comfort and Energy-Efficiency

An open, vented crawl space will make your home uncomfortable and raise your energy bills. Crawl spaces often have poor fiberglass batt insulation installed on the bottom of your floorboards. These batts droop over time and get wet destroying any benefit originally provided. Tack on the open flow of air into the space and your home has no chance.

By sealing the vent covers air flow into the space is prevented. We also install a layer of rigid foam insulation along the crawl space walls and in the floor system band. No air leakage along with proper insulation to prevent heat flow means a more comfortable home. No more cold floors or drafts coming up through the crawl space.

With the crawl space sealed you are also not paying to heat or cool air that is leaking outside your home. This can drastically lower the cost of your utility bills.

Pest and Odor Control

Open crawl spaces provide excellent homes for pests. If you are a rodent, insect, reptile or larger animal you need shelter to survive. Homeowners have unintentionally been very kind in providing their open, warm, humid crawl spaces as homes for these pests.

By closing the entrance and vents to the crawl space open passages for pests to enter are shut. No snakes or raccoons are getting in. The vapor barrier and dehumidifier keep the moisture low so it is not a nest for termites. Your chances of having insects or rodents in the crawl space are much lower. This also means no smells rising into the house from feces, nests or dead animals.

Steps to Installing A Crawl Space Vapor Barrier

  1. Install Airtight Doors & Vent Covers: Sealing your crawl space doors and vents keeps the cold air, humidity, and moisture from entering the space from the outside air, but water can still get into the crawl space.
  2. Remove Any Standing Water Sources: The next step is to eliminate any sources of flooding in your crawl space by installing a crawl space drain and sump pump system. This eliminates flooding water from your crawl space, but moisture can still enter directly through the concrete and floor in the form of water vapor.
  3. Repair The Structure: If your crawl space is sagging or damaged by prolonged mold and rot, the next step is to install crawl space support jacks to help restore your structure. This will help your floors stay even and stop any structural sagging upstairs.
  4. Encapsulate & Insulate The Crawl Space: To stop moisture from passing through your floors and porous concrete walls, a crawl space liner should be installed. A durable liner will allow for servicemen to use the space without damage while transforming your crawl space into usable storage space. This is also the best time to install crawl space insulation on your walls or floors.
  5. Install A Dehumidifier: Installing an energy efficient, self-draining crawl space dehumidifier will keep your space dry. Our crawl space dehumidifier system includes a filter that removes particles from the air as small as 2 microns. This ensures that your crawl space is protected from mold, dust mites, and mildew damage — permanently!

Why Choose Tar Heel Basement Systems for Vapor Barrier Installation?

So now that you know you should install a vapor barrier in your home the question is why should you choose Tar Heel Basement Systems to do it. Here are some reasons:

  • Fast, Clean Installation
  • Patented, warrantied Products
  • 15+ years of experience
  • Over 3 Million Square Feet of CrawlSeal® Vapor Barrier Installed
  • Installed Vapor Barrier in over 3,000 homes
  • Backed Warranties

We serve North Carolina and Virginia including Greensboro, Winston Salem, High Point, Lexington, Lenoir, Mount Airy, Statesville, Bristol, Boone, Taylorsville, Abingdon. If you would like a free estimate for vapor barrier installation give us a call. 888-333-1322We are headquartered in Winston Salem, NC.

For a free, no-obligation crawl space repair quote, contact us by phone or e-mail today!