11-14-2012, 06:19 PM
My house had it blown in in the late sixties , early seventies.
Attic and walls.
Diminishing returns with increased depths, but cellulose is a rather old and time proven product.
It can be topped over whatever you have now as long as what you have now is not defective.
Absolutely air-seal first.
Maybe your state has an energy program in place where your house can be tested for leaks and the leaks identified ?
Attic and walls.
Diminishing returns with increased depths, but cellulose is a rather old and time proven product.
It can be topped over whatever you have now as long as what you have now is not defective.
Absolutely air-seal first.
Maybe your state has an energy program in place where your house can be tested for leaks and the leaks identified ?