How to select the insullation in the attic?
I plan to have my unfinished attic finished. The existing insulation is R13. I was told to replace it with R30 on the wall and R19 on the sloped ceiling. Selection of the R19 on the ceiling is because the baffle will be installed. The R30 will probably be too thick against the baffle. Does it make sense using the R30 on the wall and R19 on the sloped ceiling or the R13 installation is good enough? See a picture of the existing insulation