Materials which are used to reduce vapor movement between the layers of a building are called vapor barriers. The use of vapor barriers, or vapor retarders, is an essential part of moisture control within commercial, residential and agricultural construction.
The use of vapor barriers prevents water vapor from condensing to liquid water within the structure, which can cause wood to rot and decay if enough moisture is present.
When selecting a vapor retarder, it is important to consider the permeance of the material, which is measured in perms. The lower the perm rating, the better the material will control the diffusion of water. Impermeable materials such as foil-faced insulation are typically installed in attics and walls.
Vapor retarders are categorized into three classes based on their permeance. Review the chart below to learn more about the products available per class.
Vapor barriers which are classified 0.1 perms or less.
Vapor barriers which are greater than 0.1 perms and less than or equal to 1.0 perms.
Vapor barriers which are greater than 1.0 perms and less than or equal to 10 perms.
Vapor barriers can help maintain a comfortable and healthy living environment by controlling moisture in basements, ceilings, crawlspaces, floors, slab-on-grade foundations, and walls.
It is important to consult with a Comfort 1st Insulation professional technician in order to ensure that the installation of a vapor barrier is done correctly and safely.
If you have any questions regarding insulation vapor barriers in Rockford, IL, please get in contact with us at 833-244-7283. We will gladly answer any questions you may have and assist you in any way that we can. We look forward to working with you!
