After all I had to take a work light up into the attic so I could see to install the recycled/reused insulation from the deconstruction to increase the R-value in the small attic over the back bedroom and bath.
The original insulation was blown in fiberglass. I was told it was fiberglass, I thought some other kind of cellulose was used and this stuff was not as prickly as the batts. You can see the boards that I put over the top so that I could crawl around without falling through the ceiling.
The insulation was about 6″ deep up there for an R value of about 24.
Although difficult to see in the photo, there is a continuous plastic vapor/air barrier on the warm side of the attic floor.
Also the eaves were sealed with caulk and in some cases spray foam–the attic is not vented at the eaves.
I added two layers of fiberglass batt pushed back into the eaves over the walls and laid perpendicular to each other.
We still had more batts to use up so I laid some three deep around the front wall and piled them up in front of the only interior wall.
Final R-Value? Probably around R-66. (two layers of 5 1/2 inch plus the original 6.) A good amount for an attic.
The job was hot and prickly. I coated myself with baby powder, wore a 3M mask, a tyvek coverall and gloves and still felt prickly afterwards. A good hot shower immediately afterward helped though.