What you learn real quick the first "Summer" you spend in "Florida" in an RV sitting in the sun! What WAS I thinking!! :C
1. Cover all windows with van windshield sunshades. They fit perfectly under day/night shades easy to slip under and remove and no velcro, brackets, etc needed.
2. On MH's covering the opening from the front windshield area from the living area of the coach is a must. As is putting sunshades on the windshield and side windows.
3. **Cover ALL roof vent openings with RV pillow inserts.
4. Cover skylights including the one in the shower with 'removable' window tinting. These 2 items ARE where ALL the heat comes in making it hard for your AC to keep up.
5. Try to park east to west so the sun is going over the shortest distance across the RV and not coming in thru the big windows on the sides.
6. If parked north to south put the awning side facing west so you can drop your awning to the lowest point to shade the side of your RV during the hottest time of the day.
** Just covering my three roof vents 'dropped the temps in my RV substantially'. If you only do just that and put the removable tint in the skylights....you will once again be a happy camper when it is real hot out!
Find the pillow inserts at any RV store or Walmart. They have material on one side and silver reflective material on the other side. That slip right into the roof vent opening. Do not buy the rubber ones.