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Air barriers vs vapour barriers - Build 171(2019)

Abbreviation
Air barriers vs vapour barriers
Valid from
01/04/2019

Information provider
BRANZ Limited
Information type
BUILD article
Format
Website, PDF

Description

An aura of confusion often exists around air and vapour barriers. So, what are they, what do they do and when should we install one or the other?

Confusion between air and vapour barriers arises because air holds a great deal of moisture in the vapour form. When this air moves from location to location due to an air pressure difference, the moisture moves with it.

Scope

This article includes the following parts:

  • What do they do?
  • Air barriers in walls
  • Air barriers in ceilings
  • Vapour barriers seldom necessary
    • When are vapour barriers needed?
    • Location of vapour barrier critical
    • Vapour barrier materials
  • Some materials are vapour checks
  • Specifications will reveal barrier type
For assistance with locating previous versions, please contact the information provider.
View on Information Provider website Download this resource (PDF, 4.9MB)
For assistance with locating previous versions, please contact the information provider.
This resource is not cited by any other resources.

Air barriers vs vapour barriers - Build 171(2019)

This document is not CITED BY any other resources:

Air barriers vs vapour barriers - Build 171(2019)

Description

An aura of confusion often exists around air and vapour barriers. So, what are they, what do they do and when should we install one or the other?

Confusion between air and vapour barriers arises because air holds a great deal of moisture in the vapour form. When this air moves from location to location due to an air pressure difference, the moisture moves with it.

View on Information Provider website Download this resource (PDF, 4.9MB)
Air barriers vs vapour barriers - Build 171(2019)
Description

An aura of confusion often exists around air and vapour barriers. So, what are they, what do they do and when should we install one or the other?

Confusion between air and vapour barriers arises because air holds a great deal of moisture in the vapour form. When this air moves from location to location due to an air pressure difference, the moisture moves with it.

View on Information Provider website Download this resource (PDF, 4.9MB)
This resource does not cite any other resources.

Air barriers vs vapour barriers - Build 171(2019)

This resource does not CITE any other resources.
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