SmartSHIELD -5mm 48''X50ft R17 Reflective Insulation Roll, Foam Core Radiant Barrier, Thermal Insulation - FOIL / FOIL

I bought this to insulate my windows & doors. Let me just say that this is a VERY GOOD QUALITY PRODUCT!! I decided to spend the extra money & go with the 5 mm thickness & I'm VERY HAPPY WITH IT!!! The temperature in my house has gone down at least 8°F since Installing the insulation. I am very happy with the overall value. I can say it is very heat resistant because I am also using it to insulate the exhaust from one of my inside Portable AC units & with it on there, you CAN NOT FEEL ANY HEAT COMING FROM THE EXHAUST HOSE. It is pretty easy to manuver to cut to size. It actually has pretty good sound insulation considering it's not the thickest available. I also did not have any issues with using adhesive on it. I really like the material it's made out of. I highly recommend that you spend a little money NOW to SAVE A LOT, LOT, LOT MORE MONEY 💰💰💰 down the road!!!!

I needed insulation in a structure that I'm using as an office and didn't want to deal with fiberglass and all the mess that goes with that. I figured I would give this a try. Don't hesitate, this stuff is incredible. It's thin and light, reflective on both sides, and it's all in one - nothing else needed. No vapor barrier needed, nothing. We literally unrolled it and stapled it up, cut where needed and used aluminum tape for some corners. And you could tell it worked after just finishing the ceiling portion. Once the walls were done as well, you could really tell. It was 10 degrees last night and it was comfortable in the building. Turned on a small heater and the space heated up within 10 minutes. I'm actually sort of blown away, it's so good that we ordered more to do another space and we will use the leftovers in a chicken coop that we are building. It doesn't smell, doesn't tear, is waterproof, rodent proof, mold proof...but mostly EASY to install. It took two 100 foot rolls to do the entire 288 square foot space. Just cut it with scissors or a blade where needed, easy to get around electrical outlets. Easy to hold overhead while stapling it to the ceiling. I'll never buy fiberglass again.

I full time RV on a 3 season trailer, and used this on my huge glass windows to push me through winter because my 1500 Watt space heater couldn't keep up below freezing temps, and wanted to save a bit on propane. First impressions Without this, you can feel the chill from the windows within just one foot of them. With this - you don't. So I did a simple experiment (See image) I applied two layers of this to 3 of 4 windows just to measure what one makes. My 1500 watt heater would plateau at about 78 degrees with 40 degree weather. After applying a double layer to the remaining window, there were immediate results as the temperature went from 78 to 82. Mind you - this was happening as the temperature outside was still dropping from 40 to 35. So if this makes this much of a difference with one 2'X2.5' window, I can only imagine 4. The circle on the first image represents the inside temp when this took place. The circle on the second represents that the OUTSIDE temp was declining at the same time (I'd say about 3-4 degrees or so). Conclusion - These things will pay for themselves in propane/fuel costs within days. Can't wait to test them against my Air Conditioner during hot summer days. If this helps anyone, I'll post an update with those results.

We travel full time in our fifth wheel and these are great to put in the poorly insulated windows. It helps keep the inside cooler in the summer and warmer in the winter. I did knock off a star because the width is a bit off, measures to 47 5/8” and our windows are 48” so it turned out to not be as snug fitting as I was expecting them to be.

Good help and very effective!!!

If your looking for a bit more insulation for your windows , bee hive’s or chicken coop this is a very good product to use before the cold sets in. Very easy to cut and shape !

worked great

Ease of installation,Value for money, Adhesion, Thickness, Insulation quality.

Bueno pero es más fácil instalar con aderente

Skirted my 5th wheel trailer with plywood on the outside and R12 insulation on the underside and added this product on top on the underside and as we are in Yarmouth N.S. and live in this rig we needed the underside to be impervious to freezing and it is doing an amazing job. Also have a small ceramic space heater under the rig but have seldom had to use it. Also great if you need to cover the inside windows but we have thermal windows so we don't need that. Easily installed with staple gun. Highly recommend.

Just Excellent. I live full time in my 24’ travel trailer and needed something to protect myself and sidekick (French Bulldog) from the extremes of Canadian Winter and Summers. Helps keep cold from blowing thru the windows and reflects heat of the sun in summer. Excellent Value for the amount received for the price

I used it as an extra insulation layer under my truck camper mattress . It should make a huge difference for warmth .