A crawlspace vapor barrier has the potential to halve the amount of moisture that causes problems, making your home more resistant to mold and water damage.

What is the typical length and width of a crawl space?

The minimum required size for access openings through the floor is 18 inches by 24 inches. When cutting through a perimeter wall, openings must be at least 16 inches wide and 24 inches tall.

In concrete terms, what are the steps involved in installing a vapor barrier?

Wood and organic materials are removed, rocks are removed and uneven surfaces are leveled depending on condition, fitted and installed on the crawl space floor and walls, drilled-in fasteners and spikes are installed to permanently hold the liner in place, and edges, seams, and pipe penetrations are sealed.

What are the benefits of using a vapor barrier?

If you do not have a vapor barrier installed in your home and, more specifically, in your attic, then the moisture that is located there will be free to pass through the walls whenever it gets cold outside. To a certain extent, the insulation in your attic will be able to prevent it from entering the walls; however, if the temperature drops below freezing, the insulation will be powerless against the moisture. The most effective way to block moisture and prevent it from causing serious problems is to use a vapor barrier. The moisture will be compelled to escape the building not through the walls but rather through the attic vents.

How are the dimensions of a crawl space vapor barrier determined?

The following measurements will need to be taken in order to determine whether or not your crawl space needs a vapor barrier: The total length of the crawl space. The width of the crawl space height of the foundation walls or as high up on the walls as you are going to encapsulate, whichever is greater. Perimeter. The total space's length, which is calculated by multiplying its length and width by 2. Because the majority of crawl spaces have a height of less than four feet, it is recommended that you use a vapor barrier with a width of either four or six feet for the walls. This will reduce the amount of overlap required.

Which millimeter thickness should you use for your crawl space?

You can get a better idea of the appropriate mil thickness for your crawl space by consulting the chart that can be found to the left. 6 mil is the standard recommendation, but we advise you take into consideration the following conditions: Ground conditions, traffic frequency, radon presence, and geographical location.