Insulation kit containing 16 reflective garage door panels measuring 24 by 48 inches each, plus 120 adhesive tapes for installation. The 6mm thick panels feature a triple-layer design with aluminum foil on both outer surfaces and a bubble wrap core to reflect heat and block thermal conduction. The foil reflects up to 95% of radiant heat while the bubble layer prevents heat transfer through air pockets. Panels are odorless, tear-resistant, and resistant to aging. Can also be applied to windows, greenhouses, attics, and water pipes for year-round temperature control.