With the insulation upside down the kraft paper is not working as it is intended.
Attic insulation installed upside down.
So i am not sure which way to install the new insulation.
If you want to add foil insulation to an existing roof you can still do it by going into the attic and.
R value simply means resistance to heat flow.
I have install new insulation becasue of a valve leak got the old stuff wet.
Moisture from inside the house can now accumulate in the insulation which will drastically reduce the r value.
The shower has two outside walls.
This will likely result in fungal growth mold and rot.
I live in the sacramento valley area which gets very hot and dry in the summer doesn t get to cold in winter but foggy damp days in the 30 3 and 40 s.
These thermal defects undermine the r value of your attic insulation.
You don t say what r value the insulation has but chances are it s adequate for a floor in your climate zone.
The damn facing obscures your work slowing down the installation and resulting in a poor insulation grade.
Just buy un faced batts install them to grade 1 and build your air and moisture control systems in another layer big separate discussion.
And that s what s going on when you attempt to hang faced fiberglass.
Before installing determine the insulation material best suited for your home.
Check pipes and vents.
Choose your insulation type.
For proper installation of roof insulation you need to do it before the roofing goes on.
In an upside down installation where the paper faces the unheated portion of the home moisture from the humid inside air can condense and become trapped inside of the insulation during cold winter months.
Calculate how much you need.