DIY Climashield TQ

[Trout]

I didn't realize the climashield xp didn't need to be quilted.

[tammons]

Thats what everybody says anyway.

I think the general consensus is if its bonded material it only needs to be sewn at the edges. If it loose then it needs to be quilted.

It probably would not hurt to put a few stabilizing threads with a single quilt loop if you get bored.

I forget what you call those.

[jbo_c]

I've read you don't have to but I think most people
do. I quilted mine.

Jbo

[Bags4266]

I got two top quilts and two bottom quilts to make using that material. I'm still going to quilt it. Its not like a fashion show, and it gives me more piece of mind.

[sclittlefield]

I've recently finished an Insultex (IX) overcover for this top quilt. It's two layers of IX with 1.1oz Woodland Camo outer - raw IX on inside (to save weight, since it will be against the quilt fabric anyway).

It turns this moderate temp quilt into a real roaster! Way too hot to use in warmer weather... no clue what temp it would be ideal at yet, but the temp change feel is drastic. I think the real #'s boost that this will give is going to make it worth it! It will likely be a while, but when I get a chance to use it on a trip I'll post results.

Weight: 9.5oz (for a total of 27.5oz combo top quilt)

I'll post pictures as soon as I get a chance.

[sclittlefield]

Pics, as promised.

[G.L.P.]

there is a equation you can use to figure out the temp rating of your quilt..
take the thickness of the quilt...3oz of CS is .9 inch thick x 40 -100

so .9x40=36
then .. 100-36= 64

but i would round it off to 1..so 1x40=40
100-40=60...so 60 degrees would be the temp rating

so the temp rating would be about 60 give or take 10 degrees because not everyone is the same..

i can take a 30 degree quilt to 11 degrees...but i'm a hot sleeper...so a cold sleeper i think 55 degrees would be the limit with your quilt...i'm going to make one next week...just waiting on the 1.1 to get here...and still need to find some CS or primaloft ...i need 5 yards of it

[sclittlefield]

there is a equation you can use to figure out the temp rating of your quilt..
take the thickness of the quilt...3oz of CS is .9 inch thick x 40 -100

so .9x40=36
then .. 100-36= 64

but i would round it off to 1..so 1x40=40
100-40=60...so 60 degrees would be the temp rating

I wonder who came up with that equation for temp ratings...

Any equation that doesn't take the insulation's specific CLO or R value into consideration is highly suspect in my mind. I could use an inch of high end insulation and an inch of really crappy batting and according to that calculation it would give the same temp rating.

I'm not trying to be nit picky - believe me - I don't understand half of what's needed to start talking details on this stuff, I just think we need to be clear that it's not just loft height that determines temp ratings.

I know all that sounds argumentative... I'm trying not to be. I am really interested in learning about insulation properties and the interrelationship of different types working together. Think you could point me in the direction of the source of that equation you mentioned? I'd love to see some of the thinking behind it.

I do know this... just the quilt w/3oz climashield, no Insultex overcover - is WAY too hot at 60deg (I am a very cold sleeper). It needs to be vented a good bit at that temp for me (no special clothing added, just sleeping in my boxers... I won't be adding pics to prove it though)

I think you'll find that climashield may work better for you than you expect - especially in a top quilt. A bottom quilt is a whole other story. My experience is that you need more insulation under you than on top. My very elementary and uneducated guess is simply because heat rises (sure, there is lots more too it, I know), so that most of what you lose is slowly working its way through the top quilt, and less through the under quilt.

I hope this reply doesn't come across as feisty as it looks when I ready it.

[G.L.P.]

i got the equation i think from the rayway quilts site...can't remember
it's not a true rating in my eyes either...thats why i said give or take 10 degrees


but seems to be a sound way to get a close temp rating of synth insulation

i know the 5oz can be used at 30 degrees by some ppl...but if yoiu plug it in to the equation it comes out to be 40 degree temp rating...that if you averagee it off to 1.5 loft
so give or take 10 degrees and your around 30...i think for a cold or average sleeper i think around 30 degrees would be the temp range of 5oz of CS...
now a warm sleeper will be able to take that down lower ...

i know myself i can take a 3 season yeti down to 17 degrees and be warm
but a cold sleeper would be freezing at that temp

also the loft posted for CS is not true loft...it can be thinner or thicker depending on how it was shipped and stored...

i'm not sure how to plug in the R value ...but if i find anything i will post it for everyone

[BrianWillan]

I wonder who came up with that equation for temp ratings...

Any equation that doesn't take the insulation's specific CLO or R value into consideration is highly suspect in my mind. I could use an inch of high end insulation and an inch of really crappy batting and according to that calculation it would give the same temp rating.

Hey Scott

Someone else on this site came up with this formula for temperature rating.

TR = 60-(CLOx8.2)

A couple of examples.

5.0 oz Climashield XP has a clo value of 0.82/oz. So 5.0 x 0.82 = 4.1

TR = 60-(4.1x8.2) = 26.4

3.7 oz Climashield Combat has a clo value of 0.78/oz. So 3.7 x 0.78 = 2.886

TR = 60-(2.886x8.2) = 36.33

Clearly your mileage may vary on this formula and it is only a guideline. I think the Ray Jardine formula is based on the fact that he is a tarp camper and is sleeping on a pad of some sort and using one of his quilts. If he had a pad of equivalent insulation to the UQs hammockers use, his formula would have to be adjusted.

Cheers

Brian