The majority of us don't give much thought to the area underneath our homes. But the fact of the matter is that if you do not stay on top of it, you might find yourself in need of expensive repairs. Under our floors, we have vapor barriers installed as a preventative measure.
Where is the best place to install the vapor barrier?
Vapor barriers are usually best installed on the side of the wall that experiences the hotter temperature and moister conditions—the inner surface in colder climates and the outer surface in hotter, humid climates. Paints that are oil-based or latex paints that have a vapor barrier offer an efficient moisture barrier for spaces that already exist.
What is the ideal thickness for a vapor barrier in a crawl space?
In order to effectively cover the area and produce a moisture barrier, vapor barriers should have a thickness of at least 6 mils.
Does mold grow underneath the vapor barrier in the crawl space?
Under your house, a variety of issues can be caused by the combination of moisture that comes from the ground and that which comes from vents in the crawl space. This moisture can lead to the growth of mold, mildew, and dry rot, and it also provides an ideal environment for the development of insects and other pests. This moisture can be significantly reduced through the installation of a vapor barrier.
How exactly do vapor barriers do their job?
These barriers are typically constructed out of thick plastic materials and are laid across the soil to prevent any moisture from the ground from ever entering the area. It is essential to understand that the only purpose that these barriers serve is to stop the movement of ground moisture into your crawl space and the rest of the building. It is still possible for there to be moisture in the crawl space area due to water runoff or leaking pipes, which is another reason why you should consider combining your barrier with a waterproofing system.
When should the vapor barrier in a crawl space be replaced and how often?
The typical lifespan of a vapor barrier is only between five and ten years before it starts to deteriorate and break down. If you do not feel comfortable crawling around under your house, you have the option of easily hiring a contractor to do the job for you.
