Insulating round ERV ducting, foil faced foam, bubble wrap or fiberglass/
Finally got the ducting for the ERV installed. Now looking at insulating ducts between ERV and outside wall for both inlet and exhaust.
I see that the foil faced bubble wrap is a very poor insulator and an older article characterizes it as “snake oil”.
I also see foil faced foam advertised as R8.
Working with this stuff is more appealing that the fiberglass sleeves. Does it really work?
It seems some companies advertise R8 while others simply brag about high thermal reflectivity. How to find the real info for these products?
What is going to be the best bet to wrap my 8″ round ducts?
I have about 30 linear feet to insulate. My attic is conditioned space.
Thanks for any comments
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