Reflectix BP48010 Double Pack Insulation, 48 in. x 10 ft

Here in Central Arizona the summer of 2020 was the longest, dryest, hottest summer in Arizona history. That means the summer started in mid May, had more consequtive days of 110°+ temps (even at 3am it never dropped below 92°) and even though we can usually get a reprieve each summer with the monsoon rains, we got less than 1/2" of rainfall TOTAL the entire year. Usually by Halloween I need to put on a sweatshirt to go outside at night, but last year I was wearing tank tops and shorts until mid November. To say it was miserable here is a bigger understatement than saying 2020 had a few unexpected hiccups. It's now 2021, mid May, over 100° outside already by noon every day, and we've had less rain so far this year than we did by this time last year. So in order to avoid $350/mo electric bills this year, I re-sealed all my windows and doors, added UV film + Reflectix insulation to every window. I measured each window frame and cut a piece of Reflectix 2" larger in both height & width to completely block any trace of sunlight from coming through. The extra length on each side has a dual purpose. It provides enough material on all sides to not only cover the window panes, but overflows to the sides of the window frame to ensure no light (heat) can get through, and also holds the entire piece firmly in place without the need for any adhesive or other tools/hardware to keep 100% of the sun's rays out. I've had every window in the front half of my house covered with Reflectix for just over a month now, and i just compared my 2020 April & May electric bills to this year's April bill and usage so far up till today (May 27), and both of this year's bills are at least 60% lower than last year's. SIXTY percent! And that's after our electric company raised our rates 12-13% last fall. If the rates had stayed the same, the window film plus Relectix would have lowered my total cost of electricity this summer by up to 73%!!! If this stuff can reduced the cost of electricity throughout an entire Arizona summer by nearly 75% every month, you'd have a heck of a time finding a climate and situation that would test it's effectiveness as well. I'm a customer for life after the results I got this year. I bought 2 rolls (48" x 10' each) and it was enough to cover all 7 double windows in my house. It works so well at blocking UV rays and preventing things inside from getting sun bleached and dry rotted that I bought a third roll to use a window shades in both our cars so it's not 140° in them with seat belt buckles that will burn the skin right off you if you accidentally touch it. Not only does this block up to 75% of heat, but it also blocks the UVB (rays that cause sunburns) AND UVA rays (the rays that cause signs of premature aging of skin and hair.) If you are looking for a way to keep an older mobile home cool throughout the summer, grab a couple rolls of Reflectix, cut each piece 2" bigger than the area you need covered, and see how much of a difference it makes. The cost of 2 rolls has already paid for itself in the saving i got on my first month's electric bill. It's a no brainer. 2 rolls will save me over $1000 this year alone. What else is there to know?

Bought more and they listened to the reviews, and it did not have glue on it this time. Great for putitng in RV windows making it cooler and darker.

I live in Alabama. It gets hot as Satan's taint here and my bedroom windows face the sun all day No amount of blackout curtains can keep the heat out. I have 2 sets on each curtain rod. I got this insulation and cut it to fit each window. It has absolutely helped keep my room cooler than last summer. My only issue with this product is that it came rolled up and they used a sticky type of glue to keep it from unraveling. The glue is impossible to remove, so it ruins a good section (maybe about 6-12" or so of one end, so keep that in mind when figuring out how much of this you need for your purposes. That being said, I would absolutely purchase this again. I'm so happy that my room isn't 10 degrees warmer than the rest of the house now, and my air conditioner can actually keep this room cooler.

Thinner than I thought it would be but what a difference in the RV windows!

I bought this to Velcro into my van windows while camping to provide insulation and a blackout environment. It was extremely easy to cut after making templates of the windows. We mounted them using double faced Velcro tape and it’s really convenient to put them on and take them off quickly. Much more economical than premade blackout curtains!

This is a great product that will potentially save you money (for that you will have to regulate your AC usage) and definitively provide you comfort. We have a room that gets morning sun and then sun all day long until it sets. It is therefore the hottest room in the house. After paying out an extraordinarily large electric bill last year I thought it might be wise to buy two Honeywell MN10CESWW 10000 BTU Portable Conditioners. They work well but at the hottest part of the day the unit in that room has a hard time competing with the sun. This year I decided to do something about it and purchased this product. The difference is at least 5 degrees...at least 5 degrees and sometimes more. If you can imagine a room that is actually "cold" you will know that these reflecting materials work. I was so pleased I bought another roll. Also, I only cut one roll to size, the other three are simply pushed up against the window and sill. Perfect behind the curtains and at night I roll a portion back to open the windows. Drawbacks are a darker room but hey, I'll take some shade to heat any day. In the winter I will roll them up and store them.

This stuff is awesome! It cooled our travel trailer down significantly! We did all the windows and it was a night and day difference. We highly recommend this product.

This cuts very nicely using a good pair of scissors. I like that when you cut it, it does not fray. It is mean to be cut and still maintains the integrity on the side of the material. It is thicker and better quality than I thought. For the things here, I used a heavy-duty 3M mounting tape and a roll of velcro from a craft store. I used heavy-duty clear Gorilla tape to fix one portion on top of my dog crate. It's heavy duty enough that it won't be a problem to travel with this outside. the black-out shades have also recently been installed and I not yet tried all of this out in the field but I'm going camping and plan to deploy if it gets hot and the sun is shining directly in. Last season I frequently used my AC and I am very curious about the difference this will make. I use a couple thermometers to monitor heat in the trailer and it seems like this stuff will both keep the heat in (think early morning) and keep the heat out during the really nasty times.