I get it by the roll from Boone Fabrics, a retail fabric store in Greensboro.
If there is a possibility of water in the liquid phase, do not use canvas. That's why I say it's good for conditions below 20*F.
I have not!
I say below 20*F, whether it snows or not. FourDog says below zero. I believe his viewpoint is that weather can warm up, and then you have the wrong gear. The point is that canvas is no good when water can achieve the liquid phase.
I don't find a tarp useful below 20*F, when I use a canvas sock... except as a wind block.Originally Posted by WV
If you look at the psychrometric chart, you will find that the absolute humidity in extreme cold is ridiculously low, making the differential between ambient conditions and your skin huge. The over riding concern is to get rid of the water vapor in a way that prevents it from freezing in your insulation. You need high vapor permeability.
- MacEntyre
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