I was thinking reflective Mylar (the same material used in emergency blankets) but strong breeze would probably shred that too.
Shiny, but not really smooth enough to show specular reflections. If I remember right. By the way, it has a shiny side and a shinier side (at least the brand I knew did, which may or may not have been this exact stuff). The shinier side is the one that does the work. For permanent use, such as in an attic, they recommend shinier-side-down, where dust won't collect on it. In a more nomadic application where years of dust won't be settling on it, maybe that matters less.
I wouldn't subject my neighbors to a reflective material on top of the canopy. Anyway, it would be much easier to install between the canopy material and support framework.
The current fabric is beige, and the translucent qualities are great for the ambiance, just terrible for radiant heat...
You could also do partial coverage inside with radiant barrier, balance what percentage of ambient light you want with how much radiant heat you'll tolerate.
Swamp pest control services. Here you can see the elimination of one of the biting flies that cause us so much misery. I encourage spiders in my enclosure.
Another post mentioned that "the camp's" pump failed. When you talked about being at the end of a five mile dirt road, I had imagined you were on some isolated plot of land in the middle of nowhere swamp without neighbors! OTOH, the video with all the swamp noises supports a really isolated plot of land.
It's a camp that offers outdoor activities like off-roading, shooting, and of course camp sites. They have public bathroom with showers, which I don't use, and water hook ups are available supplied by a solar powered well with generator back up. It's $10 per day, and with all the water I could want, I think it's a great value. I have one neighbor at this time about 300 feet away, and everyone else is more than double that. In the future I could have other people next to me. The sites close to me only have water hook ups, so not too favorable for RVs. In total I think there are around 15 people staying here now. I measured the dirt road into camp and it's 3.1 miles as per Waze.
We had about 3 inches of rain along with garbanzo-size hail and 50 mph winds the other day. My canopy came through without damage. Getting out via the dirt/mud road was exciting... I'm one of those people who removes the wheel covers. No, I will never grow up thanks.
I'm loving it! Saw this pretty little snake on the way out the other day. I got out to take the photo but didn't get very close before it crawled away. I haven't ID'd it yet but pretty sure it's poisonous.
Perhaps a Pygmy Rattlesnake (juvenille - no rattle). See 4th image. Venomous snakes to watch out for in Florida
Nope. That's no juvenile then. And it does not have a rattle. Do remember if it had a brown irregular stripe down the center of it's head (shown in the 4th image) and a regular brown segmented stripe down the spine? If not it has got to be something else.