We want to insulate the roof rafters in our attic that has heat/ac ducts in it. I keep reading and reading and so many opinions, but which to go with. Our home a 1926 Sears & Roebuck, the roof sheeting is gonna say 1" x 6" boards with minor gaps, with 3/4" perlins and then a metal roof.
I noticed this summer the ducts were sweating - not good.
So I am asking where do we start - have ideas - Durovent ventalation channels and then insulation. Are we started down the right path...
please help us