Almost every RV has the option to add insulated windows...but to keep the cost down, many do not make them with it....usually you have to order the unit you want with insulated windows, extra insulation in the walls, ceiling and floor, 2nd air conditioner, larger water heater, larger refridge, and the list goes on...If you know what you want and are willing to wait, order it the way you want it.
2003 3330 Jayco Legacy