In a vaulted ceiling however the only fresh air route lies between the insulation and the underside of the roof deck.
Cellulose insulation vaulted ceiling.
Now we re going to do is blow cellulose in this hose all the way down to the cathedral ceiling bays and we have air baffles all the way down to the bottom so that air from the vents could get up and out the ridge vent.
Cellulose insulation s higher r value is very important in limited space areas such as a cathedral ceiling cavity.
This makes it much more difficult for air to move through the insulation.