INSULATION MARKETPLACE60" x10ft DIY Foam Core Reflective Insulation Sheet, Window Insulation Kit, Garage Door Insulation, Thermal Insulation Shield, RV Window Insulation + 65 Self Adhesive Pads

I just put them on the rv windows. Keeps hot out. Rv is so much cooler and darker. Put some on the back walls of cabinets, not feeling the heat anymore. Will buy again if needing more.

Put on exposed side of metal stock tanks I am using for fish. Just want a bit more weather protection from rapid temp changes. Went on easy. Easy to cut and install

I ordered too short, so it didn't end up covering the entire window. I didn't want to mess it up around my portable ac unit exhaust, but it does block light and immediately I can notice it's a touch cooler in my living room. the adhesive stickers do not stay though, and it's in danger of falling until I can get more velcro strips. Debating if I want to buy another sheet or try to return this for a different oneUpdate: the seller reached out to offer me a refund without needing to return the item. Adding another star for their quick customer service. I'll still need heavier velcro, but I'll order another sheet to cover the rest of my window

Easy to use

The velcro dots do not work, every one I installed fell off of the window. I cleaned the glass. I finally used Velco Brand dots and it is working. Would love to return but already cut to fit my windows. A waste of hours getting them installed. Also very thin, damaged some trying to get some of the dots off.