BDF NSN70 Window Film Transparent High Heat Rejection & UV Cut (Very Light) - 24in X 24ft

One side of my new build house is south facing and after multiple rounds with the heating and ac folks I decided to try this film to reject the heat. I’ve completed the bottom half of three windows and wanted to share how clear this goes on. It’s a little difficult to work with as it’s not very forgiving- even without losing control of it I still have one or two little spots where it looks like it’s been folded and therefore creased. I saw another review where it apparently went away after a few days so I’ll update this with this review to confirm, as well as give an opinion of whether or not the heat is truly reduced. Update: it’s been about 2 weeks and I really like this product. My extra ecobee sensor indicates that the pantry, which always runs hot (74-76 degrees when the thermostat is set at 70), is registering at 71. As I worked through other windows I tried two methods of install. The first was how the instructions say to put them on, by slowly peeling the product backing off as you worked to attach to the window, and the other way I tried, was I laid the precut piece on a table and peeled it all off there, and then I attached in one fell swoop. Option 1: it takes about 20 minutes to apply, and it appears there are little to no bubbles under the film. The film does peel off periodically as you are installing and will fold over on itself which creates creases that do not come out. Over time they will minimize but if you’re like me, you’ll see them. No one else will notice it, but it drives me crazy. I also noticed there were little bubbles and almost like a smeared effect on one or two windows at the bottom and the bottom corners. Overall, it gives a clean look but definitely leaves a few blemishes, even after a few weeks of adhering. I suspect it’s because I couldn’t really get the back of the film as wet as the window’s because It was already so close to the window, creating a more dry, and therefore more difficult hang. Option 2: after I peeled the film backing off, I would apply a lot of the spray to both the window and the film, then line it up from the center and let it just do its thing. It behaves a lot like tempered glass for a phone so if you start in the middle of the glass and let go, it attached quite nicely to the window all by itself. Once it’s on, I then smoothed out as many bubbles as I could. I did panic a bit because it appeared smooth but when I came back an hour later I saw a lot of bubbles. It took about 7-10 days of leaving it alone, but they are completely gone now and the bottom and corners look great. You cant even tell there’s film on the windows. This way took me closer to 12-15 minutes once the film was cut so the more efficient install time also made it nicer to use this option.

Product damaged upon arrival. The winkes on the film are permanent and would not be straightened. Have to return.

Customers should know that, based on my purchase, it works. I see a significant reduction in heat flow through the windows. I cannot judge what will happen over time. Three tips on installation; there is no way to differentiate between the throwaway cover sheet and the actual product. You have to test the "stickyness" of the side that goes on the window and mark it so that you don't put it on backwards. I used a very small piece of tape. I tossed the provided squeegee very early in the process. I used a high quality squeegee from my shower and got 10 times better results eliminating the small bubbles. If you are doing a long window like a patio door plan in advance. Spraying soap solution on the sticky (window) side cannot be done by one person (or maybe even two) while hanging the material. I did it myself on a 60 inch french door and I felt like a one armed paper hanger.

This stuff is great, as long as you know how to install it properly. The difference in our home was immediate after installation. We have East facing patio doors and windows so the morning sun would come in hot! Not any more. We can use our breakfast bar without needing blackout curtains now. BUT make sure you take the time to see how to install it properly. We did what we figured would be 'good enough' for the first door and it's fine but not perfect. We followed the professional's steps for the second door and the application looks better and our relationship wasn't tested in the same way. Well worth the extra ten minutes of time. YouTube is your friend with this product.

So far it’s great! Felt an immediate difference the moment I held it up to the window. I highly recommend this product I love that is not dark and still allows light without the heat