In another thread, Kermegan is also working/"malingering" on a cattail down project... I'm very interested in your results... Since climashield is so cheap, it might not be worth the effort, but we'll see...
I'm hoping to make a top-quilt sometime before summer, but we'll see when I have time... I might have to convert my Alpine Designs 20-degree bag... I got it on sale cheap enough, and it's just too constricting as a mummy (apparently, I've gained some weight since my younger days.)
Last edited by JohnSawyer; 12-23-2009 at 02:26.
One under quilt with heavy climashield: 1.1oz DWR nylon on both sides... Ended up to heavy for me to carry backpacking, works great for car camping, even though this is non-breathable material, because of all the sewing needle holes, I've not had any problems with air getting in it or out of it (just takes a little longer to pack)
Both my over quilts, summer & winter are down: 1.1 oz DWR nylon on both sides... no problems with these as far as lofting and compressing down to pack, again just takes a little longer. Did notice condensation on the outside near my face and added a piece of 100% silk on both on the under side next to me. Now both quilts work great.
Winter under quilt, down: 1.1oz DWR nylon on bottom, 1.1oz nylon breathable on side next to hammock. Differential baffles. Compresses and puffs back up in record time!!! I have to be more careful of the breathable side to not get any water on it if it's raining!!
I used the non-breathable 1.1oz DWR nylon on my quilts because I'm in a humid climate to try and keep my quilts dryer. It works for me. I've found that when I sew DWR nylon that the holes don't close up so the air can pass through it. I've had water drip onto my upper quilts and puddle up on them, water has not gotten through to my down. Also I've had lots of rain splash up onto the bottom of my under quilts, no problem, just wiped it off in the morning. You are right in if water did manage to get through to the down, it would take a huge amount of time for it to dry in my quilts that are made with DWR nylon on both sides. I always try to handle my quilts with extra care when it's raining and keep them protected and under my tarp. Now humidity is a different story.
Here's a thread about my project where I did just that. Plenty of cattails around here, even in early spring. With the cost of shipping though, it cuts into the cost effectiveness of the cattails. You might consider some climashield as a medium cost alternative.