This is very cool. How recent is this? We purchased an older house with an HOA that discourages awnings. I had been considering petitioning for one but a low-emissivity coating would be easier.
The other thing the builder did foam insulation of the garage doors and walls. Easily 20F difference from my previous house in the same area. Reflective ridged insulation in the attic too. My old house 110 easily, in the summer. It is basically the same temp as the outside now. Cost for the AC is basically half what my pervious house was. I would go for awnings at this point as it is basically one of the few things left I could realistically do. But HOA...