Rigid Foam Insulation for Interior Application

CarlIs it plausible to insulate between the studs with fiberglass and then use rigid sheets of polyiso on the face of the studs to act as a thermal barrier as well as an insulator? I’m thinking of using un-faced high density fiberglass (r15)along with 1/2" polyiso (r3.5)which will be covered by 1/2" Sheetrock® as a finish wall covering...JackHi Jack,So that folks will know, “Polyiso is a