Open and allow to expand before installation
I got some burlap coffee bags for free and used a staple gun to secure a layer around ductwork on an unfinished ceiling.
I used it some time ago, but as I recall it's between 1/2 inch to 1 inch and it's consistency and density is like chunky peanut butter. Not gooey, but thicker and thinner fabric chunks that are held together by their various fibers. It was easy to work with. I used it between panels to REDUCE sound transmission and it worked well for that purpose but not eleiminate it as in a sound recording facility. For temperature control, well, use the R factor and do the math.
Yes I like it very much when I got done I did not itch Charles
I think this is best for wall insulation . I am sure Home Depot has pipe insulation that would be much better for kitchen pipes , SB
6 if you order it that way. It can also be ordered as a single
This material is rated by the manufacturer for its ability to reduce noise. It scores fairly well. https://www.acousticalsurfaces.com/wall_insulation/ultratouch.htm