Cellulose is treated with borate a harmless naturally occurring mineral that has the ability to deter bugs.
Dense pack cellulose insulation cathedral ceiling.
This makes it much more difficult for air to move through the insulation.
One of the most effective ways of dealing with existing uninsulated frame walls is to blow cellulose into the wall cavities.
At 3 5psi the insulation will not settle and create gaps.
So bees ants and termites won t find that ceiling so inviting anymore.
First cellulose has a natural density about two times that of fiberglass batts and four to five times that of loose blown fiberglass.
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.
In fact dense packing walls typically results in remarkable performance.
It is the dense packing of unvented cathedral ceilings or unvented flat roofs that is the problem.
First the good stuff.
By filling the entire cavity with a dense pack you get the highest insulation ratings fiberglass or cellulose can achieve.
There are several major advantages to dense packing completely filling a cathedral ceiling cavity with cellulose.
There will be plenty of insulation packed at the right density.
You achieve the maximum insulating capacity.