Reflective Insulation Roll is an energy-efficient thermal insulation material, usually made of multi-layer composite materials, with a core layer of bubble film or foam (such as EPE, XPE), and an outer layer covered with highly reflective aluminum foil or aluminized film. Its working principle is to reduce heat transfer by reflecting radiant heat (up to 95% thermal reflectivity), while using the air layer or foam layer in the middle layer to block heat conduction and convection. This roll is light and easy to install, and is widely used in building roofs, walls, floors, pipe insulation, and insulation needs in cold chain logistics, effectively reducing energy consumption and improving indoor comfort.