All the input is great, helps me get a clear picture of what we might need, want, etc. Does anyone have the dual pane windows? I am wondering if they truly help with the heat/cold insulating issue? Our fifth wheel now is terrible in regards to no insulation, therefore it gets VERY cold in the winter, and barely keeps up with ac in the hot summers... I know the underbelly being covered should help, but I am paranoid from my present experience.