Thank you Avanti and Davydd.
I currently have an Airstream Interstate, and really the best thing I can say about it is that it looks very cool from the outside and gets lots of compliments. However, I live in the southwest with lots of sun, heat and abundant dry camping opportunities, and I'd rather make use of evolving technology to provide a more independent-living RV. I know Advanced-RV can build what I want and have been in contact with them for a few months now, but a bespoke-built RV is always going to come at a premium price, hence the query about GWVs, and the insulation used.
Incidentally, I've noticed that on trips to Phoenix when the ambient temperature has been in the 110's, if I deploy my OutsideVan sunshades (which are reflecting and insulated) in all cab windows, and open rear windows on the shady side of the RV (usually the sun is one side and not directly overhead), and turn on the roof fan, then I can get the interior temperature down to about 90 which by comparison feels quite comfortable! I mention this to illustrate the fact that you don't need your AC running all the time even in extreme temperatures.
I currently have an Airstream Interstate, and really the best thing I can say about it is that it looks very cool from the outside and gets lots of compliments. However, I live in the southwest with lots of sun, heat and abundant dry camping opportunities, and I'd rather make use of evolving technology to provide a more independent-living RV. I know Advanced-RV can build what I want and have been in contact with them for a few months now, but a bespoke-built RV is always going to come at a premium price, hence the query about GWVs, and the insulation used.
Incidentally, I've noticed that on trips to Phoenix when the ambient temperature has been in the 110's, if I deploy my OutsideVan sunshades (which are reflecting and insulated) in all cab windows, and open rear windows on the shady side of the RV (usually the sun is one side and not directly overhead), and turn on the roof fan, then I can get the interior temperature down to about 90 which by comparison feels quite comfortable! I mention this to illustrate the fact that you don't need your AC running all the time even in extreme temperatures.