HomeMy WebLinkAboutVAPOR BARRIER LETTER - 21-00577 - Storage 1910 - Bldg 1
314 Wilburn Road • Sun Prairie, WI 53590
P: 800.356.5824 • F: 800.981.9014 • E: tbs@trachte.com • W: trachte.com
July 15, 2022
Mr. Brandon Roberts
Trusst Buildings
600 Margorie Avenue
Ammon, ID 83401
RE: Self-storage buildings for Thornton, ID (Trachte Plan #P-53988)
Dear Mr. Roberts:
It is acceptable in arid climates to exclude the vapor barrier from the foundation. However, care
should be taken to ensure that the soil is dry prior to pouring the foundation. Moisture that is
trapped below the foundation can lead to the transmission of vapor through the floor slab
resulting in condensation on the floor slab and building frame.
Provided that care is taken to ensure that the underlying soil is dry, the vapor barrier should not
be necessary for your foundation.
If you have any questions regarding this matter, please call me at 1-800-356-5824.
Sincerely,
Ross T. Mori, P.E.
Director of Engineering