They pulled out the fiberglass-batten insulation that was between the 2x6 rafters. I need to put in new insulation. This is a single story ranch, about 3200 sqft. My old insulation is R-19, but Code requires an upgrade to R-22 min.
What is the state of the art with regard to insulation? Fiberglass in rolls or battens, or cellulose, blown in, or what?? I heard that cellulose has a tendency to pack down and lose its value over the years??
Thanks for all input.
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