What Does a Vapor Barrier Do

How do Vapor Barriers Work? These barriers are typically thick plastic materials that are installed across the soil to prevent ground moisture from ever entering the space at all. Now, it’s important to know these barriers only work to prevent ground moisture from migrating into your crawl space and building.

Is a vapour barrier necessary?

A vapour barrier is an important component in building construction. Its purpose is to help prevent water vapour from reaching building walls, ceilings, attics, crawlspaces or roofs, where it can condense and cause building materials to rot or grow mould.

How does a vapor barrier work?

A vapor barrier reduces the movement of water vapor by diffusion. Holes in the vapor barrier that allow humid air through may allow a lot more water vapor into an assembly than the vapor barrier is stopping. Because of this, air sealing is more important than vapor retarders.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.

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