I'm curious if anyone has added Reflectix to their RV? We initially added it for our California trip. Temps through Oregon at the time were above 100deg F. Turns out it worked great with the AC. The other side benefit was dark. The camper always lit up great when the sun came out. My 3yr old is also up with the sunlight. Adding the Reflectix keeps my daughter and two dogs asleep. This is very important when Boondocking. Just did my first winter camping with temps in the 20's. Took the Reflectix out to see what happens. A cold draft happens from the windows.