How much insulation should I put in my home?

Insulation levels in a home heated by natural gas.  From the top down:  R38 in the peak attic, R13 in the 2x4 kneewalls, R38 in the kneewall flats, R-13 in the the 2x4 walls, R30 in the 2x10 floor.  Sketched by Kyle, a great employee and artist. The ideal amount  Read more »