As it was explained to me, cellulose insulation is a processed wood product .

The primary problem with blown in insulation is those pesky diagonal and horizontal cross pieces of wood .

The blown in deal : they blow it in from the top and so it cannot possibly fill the entire wall due to those horizontals and diagonals, too bad for you .

In the 1960's I worked on a construction crew and asked about this , they told me good construction lays in insulation before the sheet rock goes up .

That crew didn't bother with any insulation so that building, a three story combination school, dining hall and residential building was freezing cold all Winter long ~ this was in rural New Hampshire right next to a lake .

It wasn't drafty but it was like a meat locker .

Just like Mechanics, some do things properly but many don't as it saves time and $, no one can see your bad works, you just suffer whilst the builders go cash their checks and live in far better housing .

One more reason why I like living in California ~

__________________
-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better