Hi, Unforeseen circumstances have caused me to return to Florida and the Summer heat. The A/c is running about 12 hours a day. I have large windows on the rear of the rig. They are not double pane....
We have a sun shade I mounted on the exterior as we have a large window in the rear also. It works great. Keeps the heat out and you can still look out with no problem. Highly recommend. I think I bought it at Tweetys.