permebility

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malimog
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Joined: Wed Apr 13, 2011 4:14 am -1100
Location: Canada

permebility

Post by malimog »

Hello
I have a little question about how can we calculate vapor permeability/permanence of a material based on water vapor diffusion resistance factor(Miu parameter in WUFI material database) ?
I am trying to calculate vapor pressure distribution in a roofing assembly and I need vapor permanence in order to calculate vapor pressure in each surface between layers.
Thank you very much in advance
Thomas
WUFI Administrator
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Posts: 418
Joined: Sun Jun 19, 2005 10:33 pm -1100

Re: permebility

Post by Thomas »

Please see the topics

Reference | Material Data | Water Vapor Diffusion

or

Appendix | Conversion Factor Table

in WUFI's on-line help for how to convert the permeances and permeabilities.

Regards,
Thomas
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