# What is Water Vapor Transmission Rate?

Published 2019-06-04 · Updated 2026-03-26 · Transportation on MarketScale
Canonical: https://www.marketscale.com/industries/transportation/what-is-water-vapor-transmission-rate

> Water vapor transmission rate (WVTR), or moisture vapor transmission rate (MVTR), is the rate at which water molecules permeate through a barrier substance. Many factors determine WVTR, such as; area, time, the temperature and humidity, and the thickness of the material through which the water is permeating. To read more about WVTR check out our…

Water vapor transmission rate (WVTR), or moisture vapor transmission rate (MVTR), is the rate at which water molecules permeate through a barrier substance.

Many factors determine WVTR, such as; area, time, the temperature and humidity, and the thickness of the material through which the water is permeating.

To read more about WVTR check out our blog post on the subject.

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