Pre-fabricated mini storage units are widely used to store valuable belongings such as furniture, vehicles, and collectibles. Regardless of the climate in your area, it is vital that these storage units are kept dry—with inside temperatures regulated—to protect personal property from the elements. EcoFoil's Reflective Insulation features polyethylene bubbles sandwiched between two sheets of radiant barrier. The layers of bubble form a thermal break, while the sheets of highly reflective foil reflect radiant heat back to its source, keeping the inside temperature fairly uniform in both hot and cold climates.