First of all we know of no "real" thermopane windows in the RV industry as are used in homes. Cost and vibration's impact on the window prevent this design.
What is available is a "dual pane" window, which does in fact have a 1/16" inert air space housed between two layers of glass instead of the normal single layer of glass. Don't expect tremendous difference in the insulation value created by the extra pane of glass and small air space. But those customers who have dual pane windows do feel they offer worthwhile benefits. Benefits mentioned by customers are increased insulation, reduction or elimination of window condensation, and noticeable reduction in outside noise penetration. Negative comments are the $1,300 approximate cost and 150 lbs of added weight.
Dual pane windows are only manufactured with a slider window design, so any jalousie windows in the trailer will become slider windows with the dual pane option. NuWa is not for or against dual pane windows, although the benefits for fulltimer customers is being appreciated more as customers influence our staff's thinking. It's an option worthy of consideration.
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