No issue here. We spent two weeks between Cortez near Mesa Verde NP and Moab near Arches NP. Used it all winter for several years in our 195RB and previously in a Trailmanor to reduce heat coming in, fading and in cold weather loss or warmth. Some of my pieces are 7 years old and still good. Windows never a problem and lets us sleep in a bit later if we want to.
I think the reflectix just does that, reflects the heat back outside the window. In cold it does cut some heat loss on the inside.
Temps got as high as 103 and out little window unit kept us cool at less than max setting.
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2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6
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