When you're about to be hit with an oppressive heat wave, blocking out the infrared from the sun is critical. I cut this to fit the windows of my apartment and it did a great job of keeping out the sunlight. It also did a great job of making my place look like a two-bit trailer on the street but my comfort comes before my apartment complex's looks - and it's only temporary.

I have a 5th wheel RV, and installed in windows that get direct sun...I started in the upper part where the bedroom is and the temperature change was noticeable almost immediately. I decided to install in a few other windows and it made such a difference! Highly recommend.

Bought this to block out the death ray sunlight coming from my sky light in the summer and the pointless windows around doors. They made the rooms too cold/hot depending on what season it is. Bought this stuff and it 100 solved my problem in a matter of min. I used 3m sticky pads to get it to stick on the surfaces and cut with normal scissors. No smells, sticky residue, fraying or anything like that. It just WORKS.

Did a great job in my camper

This was easy to cut to fit in my second floor window. It keeps out the heat from the afternoon sun.

I really like this stuff and the fact that I can use it in multiple ways. Seems effective at reflecting away our scorching sunshine.

Boy! Did I have fun with this stuff. I made inserts for all of my coolers.

This a a amzaing product should got alot sooner than i did, and really works

Needed it to keep out sunlight in trailer while I sleep during the day...works perfect! I cut it to fit the window

I used this as reflective material for my grow lights and it was perfect! Very good thick quality material. Will recommend.

I use this in my windows that get full sun to reduce the heat in the summer and it works to keep our house cooler.

Foil insulation works wonders in our RV keeping it cooler when we used for trip in Arizona.

Great product. Used it to cover my Kitchen skylights that get afternoon sun all day. Before installing the heat was unbearable. Cuts the heat and direct sunlight better than the curtains I put up.

Excellent for motorhome/RV windows. Easy to cut to size and seems to reflect the heat/sun well. I also ordered the 48 x 10' for the windshield. Great value.

Now this is insulation. Love this product. Don't buy smart shield its not so smart.

Just what I needed to block the afternoon sun in my westerly window. Temps were 117 so happy I found this product.

I cut and used this to cover my 6 foot portable ac exhaust hose in my bedroom. I purchased the ac last summer and this is my first experience with a portable style. I live in the desert southwest where 105 is a mild summer day. Ugh! The ac put out a lot of wonderful cool air BUT the exhaust hose put out a lot of terrible heat into the same space. It seemed so counterproductive to me. They do make sleeves to cover the exhaust hose that you can purchase for 85.00 and up. I only paid 200 for the brand new ac. I don't like to buy things that can be taken care of in a cheaper way. I cut the pieces and fit for the curves in the hose. I was able to use full pieces on the straight parts of the hose. I used aluminum duct tape that can withstand heat to tape the pieces together. It has held great! Our 110 degree days did not loosen the tape. Yeah! I can't tell you just how much this allowed my ac to cool my bedroom even more. I was so impressed that I bought another roll and did my children's bedroom ac exhaust hose. The baby monitor detects its 10-12 degrees cooler in the room than before I covered it. My electric bill also dropped 34.00 compared to last year with all things the same inside and outside. I highly recommend anyone using a portable ac covers the exhaust hose with this product!

Covering camper windows! Worked well!

This is for our food cupboards in our camper to help keep it cool

Ordered 3 rolls, they work as should be expected. Great reflected insulation for the money!!