So I am going to use 12" R-38 kraft (paper) faced fiberglass insulation in my attic. I plan on face stapling the paper to the bottom chord of each truss. I imagine most of the seams sideways where stapled will overlap.
My question is since I am working with batts 48" long...should I tape the seams where each one meets? The paper facing is to serve as my ceiling VB.