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mylar bivy ?

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Dec 8, 2007 at 9:29 am #1226187

brian fitzmartin
Member

@brianfitz
Locale: philadelphia PA

can a mylar bivy (the cheap $3 ones)be used as a vapor barrier . my understanding is that a vapor barrier contain you sweat so your down dosn't get wet. am i correct or not. can't see sending $100 or so on some thing i'll use a few times a year

Dec 8, 2007 at 10:50 am #1411782

Michael Martin
BPL Member

@mikemartin
Locale: North Idaho

It works great, but it's noisy and fragile… :-(

-Mike

Dec 28, 2007 at 6:39 pm #1413988

Vick Hines
Member

@vickrhines
Locale: Central Texas

Yep. Just like any plastic. Mylar is really noisy. One mil (or thinner) polyethylene drop cloth is not. Mylar is aluminized to reflect radiant heat. This makes very little difference in the real world.
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