AGHITG Reflective Insulation Foam,48"x 10 Ft Window Insulation for Winter,Aluminum Foil Bubble Insulation Roll for Keep Heat,Window Insulation Kit for RV, Thermal Insulation Cover for Window.

Use it in my camper van for the windows. Works really well to block out heat or keep heat in when it's colder.

Upon removing the product from the large, soft-padded shipping envelope, I noted that it was folded and not in a roll as shown in the listing. Laying the product flat and letting it relax will make most of the folds go away. It is very easy to work with and can be easily cut or trimmed with a sharp knife or scissors. (for those reading this that might be under 10 years old, go ask your mama before using sharp objects... and never, ever run with scissors.) Where was I at? Oh, yeah... There will be a notable reduction in heat when this material is trimmed and fitted for windows. As a bonus, due to the materials used in it's construction, it keeps light out too so, for the day sleepers, it's a dream come true! Generous size (4' X 10') allows for just about any window sizes. It comes with a lot of Velcro sticky pads as well to complete installation(s). Nice buy at a very reasonable cost. Recommended to all!

Love this stuff. Our bedroom in west facing and above an all brick garage. The sun pouring in, even with blackout curtains caused our bedroom to heat up. This thermal barrier reduced heat by 90%. Easy to cut to size and comes with handy velcro stickers

Stops heat from coming through window. During the hot summer days, this product kept a room comfortable. It's very easy to install. I have a west facing large bay window and it has always been beastly hot in the summer. I purchased this product and immediately the room was comfortable to be in. I don't know how many degrees it reduced the heat but it felt like a 15 degree drop in temperature at least. I put it up on the window during the hottest time of the day. Then when the sun is low, I pull lightly and it drops gently to the floor. It's a light plastic product so there are no sharp edges.

This worked perfectly for my camper windows to keep out the heat from the sun while camping. The roll covered 8 windows and two skylights. (4 large and 2 small and 2x tea small) The Velcro’s dots made installation super easy. Will defintely buy again.