Reflectix

Reflectix is a multi-layer reflective insulation primarily composed of outer layers of high-purity aluminum foil (99.9%), which reflects 97% of radiant heat transfer. The majority of heat transfer in nature (such as solar heat) occurs through radiation.
Most conventional foam insulation materials, being non-conductive, effectively stop conductive heat transfer but fail to block radiant heat transfer.
Reflectix, consisting of two layers of high-purity aluminum separated by an air gap, reflects 97% of radiant energy, thereby achieving exceptional thermal insulation performance.