this thing looks awesome a cuben a momentum down quilt made by someone over at BPL. Heres the link
http://www.backpackinglight.com/cgi-...hread_id=21198
this thing looks awesome a cuben a momentum down quilt made by someone over at BPL. Heres the link
http://www.backpackinglight.com/cgi-...hread_id=21198
Cheers, Jay
I am a member at BPL and naturally lean toward the light
I have followed that thread and IMO there will be a condensation problem. Any quilt or sleeping bag needs to breath well. Water vapor continuously is emitted from the body during the night and it must have a way to escape.
Yeah, it's light, but it looks like trouble to me. I've made quilts using momentum and they are really nice, (in spite of my meager skills)
Look at his avatar, he's proud of his MLD Poncho Tarp. If someone is happy laying on a rock under a teeny, weeny, little poncho tarp then I don't pay too much attention to them.
The last two down underquilts I've made I used non-breathable material on the face next to the hammock. In the first case, for a winter UQ, I expected to have the hammock inside of a hammock sock and didn't want moisture getting into the down but then freezing where the UQ and sock are close, perhaps even touching. My experience this winter seemed to validate that thinking.
So when I went to make a spring/fall UQ I wanted to make a light one, so I made it 48" long, and the next-to-hammock face is the 0.33 oz/sq yd Cuben. I dithered on whether to use cuben on the outside face as well, thought of using a similar technique of a momentum strip to allow air in and out, but by the time I convinced myself to give it a try the hammock-side of the UQ was far enough along in construction with baffles (also in Cuben) that doing a retro-fit would look and feel like a hack. So I used momentum for the outer shell. 4+ oz of down in an UQ that weighs 8.5 oz, including the shock cord suspension. Packs down to a size very close to a liter-sized nalgene.
I've not had condensation issues with it, my moisture can go up and away from me, just not down and away. I don't think I'd make an overquilt that didn't breath.
Still, I'm tempted to go hog-wild and make an almost purely cuben UQ. I think the idea works there. And I still have down left from the discounted group buy from Ed Speer this winter <grin>
Grizz
Now you're talking, Grizz! I guess I missed any threads about your cuben momentum UQ.
my modified uq is a nanatuk down, took off the foot box, is abour 3/4 length, sewed a ...33 cuben to the bottom, so it is cuben- nanatuk -then hammock for the uq, protects from splash, spindrift etc, as griz says moisture from vapour goes up! My oq is nanatuk down. might try to sew a light cuben-momentun thingy on top, food for thought. I bet it would be warm and quite windproof but have some ability to breathe!gnome
gnome we need pics, while your at it, why not post pics of your cuben hammocok and tarp as well.
Would it be possible to use a band of breathable around the edge, ala the karo step quilts? just thinking out loud.....KM( who spent time yesterday cleaning up in the sewing room, to make room for sewing!)
Non-breathable sleeping bags and quilts are actually better then breathable ones since your sweat will never wet out the down.
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