AC WINDOW UNIT

I live in South Florida with a similar heat problem. I have 2 12500 roof units also. By mid afternoon they could not keep up with the heat. My culprit was the front windshield. It faces West in our RV park. I use to have a 5th wheel on that lot and it didn't make much of a difference, however the windshield became a radiator. The drapes on these new units are pleated and only diffuse light, not block it out altogether. I purchase silver bubble shield from Camping World and cut it to the dimensions of my windshield. I used velcro to hold it on and then put my solid vinyl windshield cover over it. It works. Not 100 percent, but the coach is bearable while the sun is baking in. Most people are not aware of the power of the sun in the sunbelt. I could easily add another 8,000 a/c unit, just to take some of the strain off the roof a/c's. I saw some coaches that have 3 rooftops. I really believe that just as they have winter packages on a lot of these coaches, there should be sunbelt packages. I think is is crazy that my coach, which was sold to me new by a Florida dealer, has roof vents with clear plastic caps. I have a clear skylight over the shower. There should be an extra 4" of insulation in the roof and double pane tinted glass all the way around. The pleated window shades should be pleated cell shades for extra insulation from the severe sunlight. So, I guess I feel your pain. Hope you stay cool!!!