Your Environment Is Our Business
This website brings you the collective wisdom of thousands of crawl space foam insulation jobs completed throughout the region.
Crawl Space Building Science
One of the biggest advances in building science over the past decade is the research that proves, that vented crawl spaces are bad.
If you've ever been in one, you know it's true. They're damp. They're dark. Critters have easy access to them. The batt insulation falls down. The air smells musty & moldy. And the crawl space communicates with the house, so that bad air (and the occasional critter) gets into the living space above. (Department Of Energy)
Truth About Vapor Barriers Under Your Home
No two vapor barriers are created equal. A long term vapor barrier must maintain lifelong integrity by resisting decay, attack by moisture, organisms in the soil, and chemicals. Beware of vapor barriers (Plastic or Visqueen) which can degrade from moisture in the soil quickly. These products are manufactured with "post consumer" recycled materials. Construction grade poly will often degrade within 2-3 years, and are sold in home centers
The Clean Space Liner is engineered and specifically made for use as a crawl space vapor barrier (Liner), it is puncture resistant and has heavy durable material like a pool liner. The liner is used to isolate the home from the soil completely and permanently, which will stop water vapor from coming out of the earth. It is carefully cut to fit, secure to the ground just like carpet in your home. Our liner has a microbial additive that inhibits the growth of mold, algae, and fungi. The Clean Crawl Space allows you to easily see that you have a Healthy Environment.
The Truth About Old Fiberglass Insulation
The reason it became common practice to install Paper Faced Fiberglass Insulation in the crawl space is because damp cold air was entering through the cracks and foundation vents which made the floors cold. Fiberglass Insulation was designed for applications in a closed cavity, like the interior walls of your home, not in an open damp environment. Insulation and moisture is a very bad combination. The paper on the insulation is mold candy: in other words, mold loves and thrives on organic matter. Install fiberglass insulation in a crawl space is not recommended.
To VENT or Not To VENT
The U S Department of Energy has found that homes built on foundations with outside ventilation suffer from poor moisture management.
Moisture enters through the foundation vents into the crawl space. Once inside, it is there to stay - outside air will not dry it out. Increased levels of humidity can cause wood flooring and furniture to swell and warp, where it may remain undetected for years. Moisture clings to floor joist, fiberglass insulation and heating/cooling equipment. The presence of moisture will result in mold and mildew damage to the home's structure and may adversely affect Indoor Air Quality. To make matters worse, the structural damage will not be covered by insurance.
An alternative to the vented crawl space is rapidly gaining popularity as an excellent solution to moisture problems. It's called the non-vented, closed or conditioned crawl space in which the vent-free foundation wall interior is insulated, combined with a vapor barrier for the encapsulation. The properly constructed non-vented crawl space is much drier than the traditional vented.
Most basements can benefit from a De-humidifier.
For Crawl Spaces
Use your existing HVAC System by introducing a small amount of (supply) conditioned air into the crawl space to help regulate the relative humidity. The supply "air inducer" also includes a backflow damper to keep crawl space air from entering the HVAC system.
Inhalation of Chemicals & Dead Animals
Homes that have been treated with pesticides
time and time again, often use compounds
now banned by the U S Government.
Keep the chemicals out.
When we say "relative humidity" is a measure of the amount of water in the air compared with the amount of water the air can hold at the temperature it happens to be when you measure it. When humid air enters your crawl space through your vents for every one degree we cool the air, the relative humidity goes up around 2%, because cool air holds less water than warm air, the moist air reacts with cooler air and causes condensation. Because of the high humidity in vented crawl space, cool surfaces will sweat, your air ducts will collect water and get heavy, causing the ducts to sag which will eventually fall down.