Forum Discussion
Wes_Tausend
Feb 22, 2013Explorer
Jfet wrote:
Thanks for the suggestion Wes! So, like Tyvek between the foam and the interior luan/mahagony walls? That should be pretty easy I guess.
The WR250R is the most awesome bike we have ever owned. Fuel injected 4 stroke, 65mpg, can do 75mph on the hwy, only 280 lbs. They are expensive but worth every penny.
ticki2 is correct. Tyvek is a plastic with very small perforations that allows the escape of single water molecules (vapor), but prevents the intrusion of "coagulated molecules" (condensed wet water). It acts like GoreTex, water-proof, yet breatheable. It slows breathing a little bit but far less than a polyethylene sheet installed on the warm side of the wall to keep vapor out. Vapor therefore can't enter as easy as it can escape. Water doesn't condense on the warm side, just when it reaches a cool interior or cold surface.
Wes
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