When constructing or repairing commercial buildings, one must constantly be aware of the risks that are posed by moisture. This is one of the unavoidable aspects of the job. If water gets into the building in places where it isn't wanted, there is a risk that it will cause rotting wood, mold, chipped paint, and other problems. If proper precautions are not taken, even a single small leak could cost tens of thousands of dollars in damages, and if an area that is predisposed to water damage is not properly addressed, it could result in multiple waves of damage. Therefore, prevention is the most important step in protecting buildings from the havoc that can be wreaked by moisture.
In a crawl space, what exactly is a vapor barrier?
Crawl space vapor barriers are long-lasting membranes that stop the passage of water vapor into the crawl space. This is how they achieve their intended purpose.
What is the main distinction between a vapor barrier and an air barrier?
When it comes to protecting a home from moisture intrusion, air barriers are far superior to vapor barriers. Air barriers are constructed to obstruct the flow of air and the moisture that comes along with it from entering the building envelope of a structure. The sole purpose of a vapor barrier is to prevent the movement of moisture into the building envelope of a house via the vapor diffusion process.
What does a vapor barrier prevent?
Wet rot is the most common type of structural damage, but there are other ways in which moisture can start to break things down and cause damage. A crawlspace that is not protected from the elements can serve as a fertile breeding ground for a wide variety of microorganisms. Rusting and other forms of oxidation can also take place in the metallic components that are located beneath your house. It has the potential to corrode metals and cause a wide range of problems over time. Mildew and mold will grow in any location where there is sufficient moisture to support their growth. In many cases, the presence of these troublesome microorganisms can be caused simply by an increase in the level of humidity.
Do I need a vapor barrier?
It is simple to determine whether or not your home requires a vapor barrier, although it is possible that certain homes do not actually require one. If the floor of the crawlspace underneath your house is made of dirt, you really ought to get one put in as soon as you possibly can.
What kinds of moisture barriers are effective for crawl spaces?
A minimum reinforced poly vapor barrier of 6 mils (0.006 inches) in thickness is frequently specified by building codes for residential applications.
