7 Factors to Consider When it Comes to Under-Slab Vapor Barrier Placement
Vapor barrier thickness is a key attribute of a below-slab vapor barrier but it does not tell the whole story. Tune into this Stego IQ episode where Stego Technical Director Dan Marks provides some insight on all the key attributes that make up a high-performing under-slab vapor barrier which is puncture resistance, tensile strength, and most importantly permeance and longevity.
Stego IQ returns with the latest episode dispelling the myth about vapor barriers and slab curl. Dan Marks, Stego's Technical Director, returns to the screen to explain the short term slab curl effects with a vapor barrier as well as the long term effects of slab curl if you do not install a below slab vapor barrier.
A Narrative History of the Biggest Myth around Under-Slab Vapor Barriers
5 Tips and Tricks for Sealing the Terminating Edges of the Vapor Barrier
Photo courtesy of Chavez Concrete Contractors, Inc.
Despite its cost being measured in mere cents per square foot, project designers, contractors and building owners often disregard a high-performance under-slab vapor barrier. Yet, failing to use this vital material may be the best illustration in the construction industry of “a penny wise and a pound foolish” – unnecessarily risking costly consequences and potentially years of legal squabbling over liability.
Here are 10 critical reasons why you should always use a high-performance vapor barrier, no matter the project:
“Vapor retarder” is the term used to describe materials of varying types and classifications which impede the infiltration of water vapor into a structure. Often the term “vapor barrier” will be used interchangeably with the term “vapor retarder,” with no repercussions. But for under-slab applications, it is important to understand the distinctions between the two terms to avoid negative impacts on your project.
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