Reflectix is one of the newer items that comes jam-packed with scientific backing. Being compliant in nearly every area, including fire resistance and is completely non-toxic, non-carcinogenic and has an R-value of a whopping 14.8. It’s also made of various layers of foil and lightweight metals, making this an extremely lightweight offering, and can therefore be much easier to install.
Since it’s fiber-free and very thin, it can easily be cut with scissors, which can cut down installation time drastically. Meanwhile, the center bubble-pack style layer can prevent the transference of heat, which means heat is kept in during the colder months and out during the warmer seasons. The materials are also considerably cheaper than most others, meaning that cost-effectiveness is passed on to you, as this is one of the cheapest options available.