Vapour Permeability - Revision history

Designing Buildings at 07:34, 16 May 2022

2022-05-16T07:34:31Z

← Older revision		Revision as of 07:34, 16 May 2022
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	* Barrier wall system.		* Barrier wall system.
		+	* Breathable construction.
	* Breathable membranes market.		* Breathable membranes market.
	* Breather membrane.		* Breather membrane.

Designing Buildings at 07:39, 15 January 2021

2021-01-15T07:39:13Z

← Older revision		Revision as of 07:39, 15 January 2021
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	* Vapour barrier.		* Vapour barrier.

−	[[Category:Articles_needing_more_work]]	+	[[Category:Articles_needing_more_work]] [[Category:DCN_Definition]] [[Category:DCN_Guidance]]

Designing Buildings at 14:28, 26 March 2020

2020-03-26T14:28:59Z

← Older revision		Revision as of 14:28, 26 March 2020
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	* Interstitial condensation.		* Interstitial condensation.
	* Penetrating damp.		* Penetrating damp.
		+	* Permeability.
	* Rising damp.		* Rising damp.
	* Vapour barrier.		* Vapour barrier.

	[[Category:Articles_needing_more_work]]		[[Category:Articles_needing_more_work]]

Designing Buildings at 07:06, 24 May 2019

2019-05-24T07:06:37Z

← Older revision		Revision as of 07:06, 24 May 2019
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	* Penetrating damp.		* Penetrating damp.
	* Rising damp.		* Rising damp.
−	* Vapour ~~barier~~.	+	* Vapour barrier.

	[[Category:Articles_needing_more_work]]		[[Category:Articles_needing_more_work]]

Designing Buildings at 07:05, 24 May 2019

2019-05-24T07:05:29Z

← Older revision		Revision as of 07:05, 24 May 2019
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−	~~[This article is incomplete]~~	+	{{:Standard_text\|Articles needing more work}}

	Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Building elements where vapour permeability is poorly designed can result in condensation, leading to unhealthy living environments and degradation of fabric.		Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Building elements where vapour permeability is poorly designed can result in condensation, leading to unhealthy living environments and degradation of fabric.
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	* vapour resistance factor, also known as th µ-value, which is the resistivity of a material relative to that of still air. It is a factor, and has no units.		* vapour resistance factor, also known as th µ-value, which is the resistivity of a material relative to that of still air. It is a factor, and has no units.
	* "perms", short for permeability, used commonly in North America, measured in grains/(ft2 ·h·inHg)		* "perms", short for permeability, used commonly in North America, measured in grains/(ft2 ·h·inHg)
		+
		+	= Related articles on Designing Buildings Wiki =
		+
		+	* Barrier wall system.
		+	* Breathable membranes market.
		+	* Breather membrane.
		+	* Chemical injected DPC.
		+	* Cold bridge.
		+	* Damp proof course.
		+	* Damp.
		+	* Dew point.
		+	* Humidity.
		+	* Interstitial condensation.
		+	* Penetrating damp.
		+	* Rising damp.
		+	* Vapour barier.

	[[Category:Articles_needing_more_work]]		[[Category:Articles_needing_more_work]]

Tom Kaneko at 14:27, 2 May 2019

2019-05-02T14:27:55Z

← Older revision		Revision as of 14:27, 2 May 2019
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	[This article is incomplete]		[This article is incomplete]

−	Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. ~~Poorly~~ designed	+	Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Building elements where vapour permeability is poorly designed can result in condensation, leading to unhealthy living environments and degradation of fabric.

	Vapour permeability can be expressed in several ways:		Vapour permeability can be expressed in several ways:

Tom Kaneko: Created page with "[This article is incomplete] Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Poorly ..."

2019-05-02T14:25:02Z

Created page with "[This article is incomplete] Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Poorly ..."

New page

[This article is incomplete]

Vapour permeability, or "Breathability" in a building refers to the ease with which water vapour passes through building elements. Poorly designed

Vapour permeability can be expressed in several ways:

* vapour resistivity of a material, measured in GNs/kgm (giga Newton seconds per kilogram metre) or MNs/gm (mega Newton seconds per gram metre)
* vapour resistance for a given thickness of material, in GNs/kg or MNs/g
* vapour resistance factor, also known as th µ-value, which is the resistivity of a material relative to that of still air. It is a factor, and has no units.
* "perms", short for permeability, used commonly in North America, measured in grains/(ft2 ·h·inHg)

[[Category:Articles_needing_more_work]]