If any ads are present below my answer or words underlined/colored, I do not condone/support/use the product or services listed/linked to, they are there without my consent.
WELCOME to the forums, if I forgot to say it!
It brought my heat bill down quite a bit. But I also sealed the attic before adding the blown in insulation. You might want to consider doing that before adding anything. It's very important. Lift every batt and look underneath.
Gary, excellent thread you started about fiberglass insulation. All of the links are very helpful!
The Following User Says Thank You to gma2rjc For This Useful Post: