Synthetic insulation temp ratings?

[hk2001]

With primaloft and climashield, what are the expected temps for single and double layers of each option?

I'm looking specifically at the insulations from RBTR: For primaloft, you have the gold and silver, and for climashield you have the 2.5 and 5

[nuttysquirrel]

I use 5 or 6 ounce cs apex to 30* 2.5 to 50 or so. Not sure about primaloft

[SirMarkos]

I'm interested in real world temperatures of these myself.

[Mouseskowitz]

This is the best chart I've seen. It doesn't have the PL silver, total CLO of 4.74, so I would probably use the 4.5 CLO range. For the weight, two layers of PL gold would be about 10* warmer.

[El Gordo]

Would someone please help explain that chart to me? For example, what is "Deg F-warm" versus "Deg F-cool"? And, for example, is the "900 1yd" column the weight at a given loft of a yard of 900 fill power down in ounces?

[SirMarkos]

This is the best chart I've seen. It doesn't have the PL silver, total CLO of 4.74, so I would probably use the 4.5 CLO range. For the weight, two layers of PL gold would be about 10* warmer.

Wow! Synthetic completely falls apart after the 40º range. No wonder most folks go with synthetic at those temperatures. I had no idea the gap got so large after that.

Down is still king!

[SirMarkos]

Would someone please help explain that chart to me? For example, what is "Deg F-warm" versus "Deg F-cool"? And, for example, is the "900 1yd" column the weight at a given loft of a yard of 900 fill power down in ounces?

Deg F-warm - Deg F-Cool is the temperature range.

And yes, that's the weight of each material needed to achieve that range.

[Mouseskowitz]

Would someone please help explain that chart to me? For example, what is "Deg F-warm" versus "Deg F-cool"? And, for example, is the "900 1yd" column the weight at a given loft of a yard of 900 fill power down in ounces?

From left to right. Temp for warm sleeper, temp for cold sleeper, CLO for that temp range, loft for that temp range, and the rest is weight per sq yd for the insulation. At the bottom you can see the calculations for the CLO of the different synthetics. For PL silver it's 0.79*6= 4.74 total CLO.

[nosckaj123]

Its amazing how years of research into insulation materials still doesn't add up to nearly the same insulating properties as regular down. Interesting to see if we will ever come up with a cheap alternative that actually matches down's properties

[FLRider]

Wow! Synthetic completely falls apart after the 40º range. No wonder most folks go with synthetic at those temperatures. I had no idea the gap got so large after that.

Down is still king!

Yep. And the reason for that is percentage of insulation weight to percentage of shell weight in the quilt. Warm weather syn quilts can be VERY close in weight to down quilts. Cold weather, not so much.