As others have commented - windows always closed and roof vents always open with MaxxAir covers. We recently added sun screens to the side windows to help block the heat while traveling. The blinds by themselves don't really help in that respect.
TT: 2015 Jay Flight SLX 195RB Baja Edition
TV: 2014 RAM 1500 Bighorn CC, 5.7L Hemi, 8-spd, 3.21LSD, Factory Air Ride/Tow Pkg, Andersen WD/SC