There are different ways to accomplish this, as well as different results, depending on the “system” you purchase. Crawl space encapsulation alone will help reduce moisture and improve the environment of the crawl space, but there are other components to consider like; the quality of the crawl space vapor barrier, how to close the foundation vents permanently, crawl space insulation, sealing the crawl space vapor barrier to the foundation wall, conditioning the crawl space, crawl space moisture control and lowering the homes energy costs.
Before selecting the best crawl space vapor barrier for your home you must first understand what it is you expect it to do during its service life. There are 4 main parts to a successful crawl space vapor barrier:
- Moisture protection
Specialty products like crawl space vapor barriers must perform under difficult conditions. That does not mean that every crawl space vapor barrier will be installed in a difficult condition, but it does mean the vapor barrier must be capable of handling the worst in order to be the best.
Consider these facts about crawl space encapsulation:
- Mold begins to grow at about 60% relative humidity.
- The humidity outside in Arkansas rarely goes below 60% in the Summer.
- A crawlspace is almost always higher humidity than outside which welcomes mold growth.
- Up to 1/2, the air in your house comes from the crawlspace. Maybe the source of allergies or worse.
- The humidity in an encapsulated crawlspace is 45-55%
- Encapsulated crawlspaces work, are completely mold free, and can even be used as a clean storage or work area.