[Greenbuilding] Water Barrier

[John Straube]

Exactly.  And Tyvek is Gore-tex for buildings.

On 2013-03-01, at 10:46 AM, Corwyn <corwyn at midcoast.com> wrote:

> A water barrier is designed to keep *liquid* water on one side of it.  A vapor barrier is designed to keep *gaseous* water on one side of it.
> 
> Often a water barrier is purposefully made to NOT be a vapor barrier. The common example is gore-tex clothing.  It keeps the rain out, but allows the vapor of evaporated sweat from the occupant to escape.
> 
> 
> Thank You Kindly,
> 
> Corwyn
> 
> -- 
> Topher Belknap
> Green Fret Consulting
> Kermit didn't know the half of it...
> http://www.greenfret.com/
> topher at greenfret.com
> (207) 882-7652
> 
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John Straube
www.JohnStraube.com