3M Outdoor Patio Door Clear Insulation Kit, Heat or Cold Window Insulation Kit for Large Windows and Sliding Doors, 1-Door Kit, 7 ft. X 9.3 ft.

Installation is easy. Effectiveness is excellent. Very easy to reuse year after year.

Got this to reduce condensation on windows in the winter. Works so far for 68 degrees F and 60-70% humidity inside and 30's outside. Compared to the Duck Brands equivalent stuff, it's more transparent/clear and has a more rigid rather than stretchy feel to it. Although the instructions don't say so, you CAN shrink it to get rid of wrinkles with a hair dryer. Currently using this indoors rather than outdoors as it's marketed - I figure that's fine rather than doing the reverse.

Here is what I suggest when installing this.Have scissors, painters tape, rubbing alcohol, paper towels.1) Fully clean the surface where you going to stick the double-sided tape. Then suggest you use a paper towel and rubbing alcohol to clean those surface once more. Let it dry completely, then apply the double stick tape to that surface. DO NOT peel off the paper side yet or you will have a total mess.2) Unfold that plastic folded sheet completely and do a dry fit to see how much excess you will have on each side. I know the instruction says cut it to size, but I cut it at the very end.3) Suggest you double line if possible of the double stick tape for the top, only if you have extra once you have applied the tape all around first.4) I suggest use a piece of blue painters tape to temporarily hold the two top corners. When you expose 1st the top double stick tape to stick the sheet plastic first.5) Then do the left and right side. Pull away the paper tape backing of the double stick tape slowly as you go. This way you don't have the plastic sticking by itself and making a mess.6) last is the bottom to do, same pull off the double stick paper backing slowly as you go along.7) Once all sides are done just go back with your scissor and have it glide cut the excess easily.The double stick paper backing is a pain in the neck to remove. Just have to be patient.It doesn't go skin tight like the indoor type but it does work to insulate and stop the cold .Overall looks okay and seems to work. Will update if it fails.

I've used this weatherproofing kit on our outer windows for at least the last 20-25 years. Our house was built in 1884 and breathes through the walls and windows each winter. This winterizing kit for windows makes a huge difference in our natural gas bill and the comfort of our house. It's fairly easy to apply once you've read the directions. I buy an extra roll of tape along with the kit to make double rows of tape so that there is enough to hold it on tightly. I learned that lesson the first year I used it. Also, you really do need to clean the surface well before applying it to make sure it stays on during Noreasters! Once you've applied it, the blow dryer should get rid of any wrinkles. I use prepackaged alcohol prep wipes to get all the dirt and oils off the surface before applying the tape. It doesn't cost much but I think of it as insurance to make sure it lasts through the winter. You should clean the outer glass panes before applying so you don't have to look through dirty windows all winter. I absolutely love this product and wouldn't go thru the winter without it.Linneaann

Will not stay on your door if it’s exposed to weather and wind. Easy to put on but blew off.

With this changing environment I have been unable to let my screens be uncovered. I have a cat door that doesn't fit in the custom sliding door and it has to be used with the screen door. Way too cold in the winter and this summer was too hot. So I put this over the screen door and it kept the temperature way better in both seasons.

First time I ever bought an exterior kit I've only ever done them from the inside. Cleaned everything so well that the tape is stuck but the plastic pulls right off the tape. So got everything nice and tight and looking good and then the weather changes at night and it pulls right off the tape and now it looks terrible and I live in a condo with hoa. I've wasted $24 on this cuz I'm going to have to pull it down and throw it away. There does not seem to be any way to get your money back when this is not functional so be really cautious about purchasing this item. Awful value for the money considering that it didn't work and it's not even really cold yet. And the thickness is garbage heavy duty no way, had to use two pieces of tape as recommended in the instructions to separate that's how thin. Also implies it's a shrink kit but it's not? But it did shrink when I heated it

I put this up last night and the tape already seems better then other brands I’ve used. It is very clear and I can’t tell it’s there when looking out the window. I did clean the boards so the adhesion would be as best as possible. They have a note in there about the plastic sheeting being stuck together and needing to use 2 pieces of tape to pull it apart. This is very true, you can’t even tell it’s folded it’s so seamless, so DO give that a try to open it fully.I start by adding the tape around the door first leaving the backing on, then unfold the plastic sheet and attach it to one tape side at a time. Pulling the backing off and sticking the plastic in increments as I go. This was very easy to pull of the tape and adjust when needed but still felt like it would stay sticking for a while.