OK, I am curious how Y'all insulate your duct work on installs: Do you wrap it on the outside, or do you line it on the inside?
Let's here where you are and how you do it.
I am in Connecticut, and it is mostly wrapped on the outside. However, when I lived in Kansas, it was all insulated on the INSIDE, before it was put together and taken to the job site.
Which brings me to another question: Do Y'all build your duct work on site, or do you do it at the shop, and then bring it to the jobsite?