So bees ants and termites won t find that ceiling so inviting anymore.
Dense pack cellulose insulation cathedral ceiling.
First cellulose has a natural density about two times that of fiberglass batts and four to five times that of loose blown fiberglass.
You achieve the maximum insulating capacity.
The insulation will continue to keep the cavity filled.
There are several major advantages to dense packing completely filling a cathedral ceiling cavity with cellulose.
By filling the entire cavity with a dense pack you get the highest insulation ratings fiberglass or cellulose can achieve.
Advantages to dense packing.
At 3 5psi the insulation will not settle and create gaps.
It is the dense packing of unvented cathedral ceilings or unvented flat roofs that is the problem.
Cellulose is treated with borate a harmless naturally occurring mineral that has the ability to deter bugs.
First the good stuff.
One of the most effective ways of dealing with existing uninsulated frame walls is to blow cellulose into the wall cavities.
This makes it much more difficult for air to move through the insulation.
For a faster more affordable solution to the cathedral ceiling problem dense pack cellulose insulation can be blown into the ceiling s rafter bays through access points along the roof eaves or roof ridge.