Insulating a room in the summertime with gulungan aluminium foil can help keep sunlight out of the room and lower temperatures. Tutupi semua jendela sepenuhnya dengan aluminium foil dan kencangkan dengan selotip tugas berat seperti lakban. Permukaan yang mengkilat akan memantulkan sinar matahari. Anda juga bisa mengisolasi makanan dingin saat berada di dekat matahari. Wrapping a cold soda can, yang mencakup penyegelan kelembaban dan membentuk fleksibilitas, with aluminum foil will keep it chilled. Adding a layer of bubble paper between the aluminum foil and soda can will keep it cooler for longer.
If you would like to insulate something in a dark place, such as lunch box, another material such as cotton or paper could work just as well as aluminum foil. As a matter of fact, cotton is regularly used for insulation, as it is environmentally friendly. Because aluminum foil reflects light, when it is in a dark place, there is no light for it to reflect, so it will work similarly to other materials.