How does denim insulation perform at low ambient temperatures

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I am interested in how denim insulation like this performs at low ambient temperatures. Does anyone know? I am most interested in performance measures like R-value and what other factors affect this.

I have seen some estimates for other materials, such as here and here, but not for denim or for other "fabric-type" insulation.

(For me, "low temperatures" means 0 to 40 deg F, or -18 to 4 deg C. I am thinking about insulating windows at night with denim insulation and a vapor barrier, but I'm interested in a range of applications.)

Thanks!

Best Answer

you can use this far better frost avoidance and cold draft reduction . good to -40’C

https://www.homerepairtutor.com/how-to-weatherize-windows-with-plastic-film-insulation/

I made insert frames and heat shrunk onto then remove and store in spring. But getting an air flow seal is best. They will inflate if not tight. Easy to install with a hair dryer, not too close .(6”)

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