DGSL Double Reflective Bubble Foil Insulation Foam, 23.6 in X 10 FT Aluminum Foil Thermal Insulation Radiant Barrier for Window, Garage Door, RV, Roof

Not cheap, but definitely worth the price. Helps keep some heat/cold from getting in. 1 layer doesn't block out all the sunlight, blocks out enough tho.

I used this in my greenhouse during freezing rain and cold temperatures when I needed a little extra insulation. I’ve purchased another brand in the past that was slightly thicker, but this still helped keep some of the cold out. I was also covering my plants with flannel sheets and packing blankets, so everything combined made a difference. It’s easy to work with and looks durable enough (I haven't had a problem). The adhesive pieces that came with it didn’t really hold, but honestly I’ve tried other brands with similar results, so I wasn’t expecting a miracle there. Even with the harsh weather, I managed to save most of my plants, so I’d say it did its job when I needed it.

Works great is added insulation to my hot tub.

The use of the word “double” implies a double bubble, in my opinion, but this is a single bubble product. With that being said, it works as well as any other single bubble insulation I’ve used. It’s a decent price and I liked that it came with sticker pieces to attach it with. I use this to insulate packages for shipping and it’s great for slightly warm/cold conditions.

i wanted to try this out on my front windows , my front windows face sun all day until dark i had the window with foil, this worked pretty well but still got hot. the Double reflective bubble foil works better then i thought it would, it decreased the temp coming thu the window by 10 degrees its about 1/4 inch thick , easy to install vs aluminum foil

I was a bit septal but it seems to work good to take the chill off my cat's outside enclosure, I'm thinking about trying some for a window..

This is good quality stuff. I bought it to insulate a small cabinet and it worked exactly how I expected. It was easy to cut to size. Highly recommended.

I rely on reviews often and I am a little disappointed the reviews touted this better than it is. This is about half the thickness of a quality type insulation material. I am including pictures where you can see that it's not fully reflective and the sun shines through it when placed on a window. I had been using a thicker product on my garage door and ran out so I bought this for the price. It was half the thickness and felt much more flimsy. I decided to cover my windows as well to help wih heat loss over winter and to keep it cooler in summer.

El aislante de aluminio esta muy bueno, muy resistente y sí cumple su uso

Works well to insulate and if above a heater reflect well. Easy to install

Disminuye considerablemente el calor.

The ultimate heat protection to mount on older exterior windows. Noon to sunset direct sun is no match for this awesome product on my 56 year old windows. Also excellent for keeping cold drafts out in the winter. Who Knew?

I have seen many items for garage insulation before ordered this and this is working than other expensive insulation. One thing is not good is adhesive sticker it come with , in -10 degree it fallen off from door. I used some insulation tape which works better. Overall now it keep my garage less cold in winter. Better than before