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vapor barrier
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noun Building Trades.
a layer of material, as plastic film or foil, used to protect installed insulation by retarding the transmission of moisture from the interior environment.
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Origin of vapor barrier
First recorded in 1940–45
Words nearby vapor barrier
vape, vape pen, Vaphio, vapid, vapor, vapor barrier, vaporescence, vaporetto, vaporific, vaporimeter, vaporing
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use vapor barrier in a sentence
The downside comes when that promise turns out to be false — if the buyer moves in only to find out that the roof needs replacing or the bathroom has no vapor barrier and mold is growing.
LNG terminals are typically designed with vapor barriers at the perimeters.
Engineers raise alarms over the risk of major explosions at LNG plants|Will Englund|June 3, 2021|Washington Post