Insulative Sheathing bodyPactiv Building Products announces the launch of GreenGuard® extruded polystyrene (XPS) PLYGOOD® R-2 insulative sheathing, a cost effective solution to meeting the increased wall insulation requirements of the 2009 International Energy Code (IECC). GreenGuard®PLYGOOD R-2, an extension of the company’s PLYGOOD insulative sheathing product line, is an extruded polystyrene board featuring a polystyrene foam core and field-proven, durble plastic film facers. For more information, visit