RestoModAir membrane for under roof?

[130fe]

Getting ready to put some heat protection under my roof in my camaro. I was wondering if anyone has any feedback on the RestoModAir membrane to help cool my interior from the FL heat? Any other recommendations? Thanks!

https://www.restomodair.com/shopproducts/membrane-thermal-insulator/

[dhutton]

I use Dynamat followed by a layer of Thermozite.