What does vapor barrier mean?
Definitions for vapor barrier
va·por bar·ri·er
This dictionary definitions page includes all the possible meanings, example usage and translations of the word vapor barrier.
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Wikidata
Vapor barrier
A vapor barrier is any material used for damp proofing, typically a plastic or foil sheet, that resists diffusion of moisture through wall, ceiling and floor assemblies of buildings to prevent interstitial condensation and of packaging. Technically, many of these materials are only vapor retarders as they have varying degrees of permeability. Materials have a moisture vapor transmission rate that is established by standard test methods. One common set of units is g/m²·day or g/100in²·day. Permeability can be reported in perms, a measure of the rate of transfer of water vapor through a material. American building codes have classified vapor retarders as having a water vapor permeance of 1 perm or less when tested in accordance with the ASTM E96 desiccant, or dry cup method. Vapor retarding materials are generally categorized as: Impermeable, Semi-permeable,
Numerology
Chaldean Numerology
The numerical value of vapor barrier in Chaldean Numerology is: 3
Pythagorean Numerology
The numerical value of vapor barrier in Pythagorean Numerology is: 8
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"vapor barrier." Definitions.net. STANDS4 LLC, 2024. Web. 26 Apr. 2024. <https://www.definitions.net/definition/vapor+barrier>.
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