Saw it in the Menard's ad in yesterday's Sunday newspaper.
I put some in my Compact Jr this fall
. It's very easy to work with. My walls were nice but bare fiberglass.
Nothing had ever been glued to the walls as far as I could see. I preferred installing it without making it permanent.
I used heavy duty adhesive-backed Velcro cut into squares spaced about the back of each piece of Reflectix I cut.
The Velcro is pretty expensive. For the final few pieces I used heavy duty double-sided carpet tape with fiberglass reinforcing. It was about $10 for a 75' roll and seemed to work very well. I used several strips running in each direction on the back of each piece of Reflectix.
But I'm sure it would not be strong enough to hold both the Reflectix AND carpet. I did find a nice outdoor carpet at Menard's that had a smooth vinyl back that allowed the use of the double-sided tape and put some of the carpet on the upper wall of the camper.
The carpet came in a nice tan color and was only .34 cents a square foot. It probably wouldn't stand up to much foot traffic but seemed to help on the walls.
When my camper is out in the full sun the ceiling and walls get VERY hot to the touch. And when it's early morning the walls can be very cold and damp to the touch.
But with the Reflectix in place (and the carpet) the walls were very comfortable
In the spring I'll probably cover the Reflectix with a lightweight fabric