I'm re-insulating an interior wall & putting up drywall to replace the old plaster walls. Rather than screwing the drywall directly into the studs, I'm toying with the idea of putting a 1/2 inch of polystyrene rigid insulation along the stud, to prevent thermal bridging. I would then put up the drywall with longer screws that would go through the poly, and dig into the studs.
Is this a bad idea? Will this cause problems either during installation of the drywall or days/months/years after installation?