I currently have pink fiberglass bats in the attic. I wanted to add blown in insulation.
My attic space is a bit unique. I'm used to a moderate sized attic that you can access. This attic has no access. There might be 1 - 2 feet of space between the ceiling and roof decking.
The one space I have to access any part of the attic is around the chimney. It isn't boarded up and I can shimmy straight up the side of the chimney to the attic. That's how I know it's only about 1 - 2ft of attic space.
I've read about standard insulation installation techniques such as: Not to push the insulation up against the decking or moisture will develop. Proper roof ventilation to avoid moisture build up.
There are no attic vents on the side. No soffit, no soffit vents. The decking just comes straight off the house. The only ventilation is a ridge vent.
I was going to cut into the ceiling and blow insulation in until the entire space was filled.
I'm afraid of trapping moisture, rotting the decking and creating a breeding ground for mold.
With a roof/attic system like mine, is it OK to just fill the attic with insulation or am I stuck at certain level of insulation? How much space must be between the decking and insulation?