Aluminum sheets for exterior walls offer several advantages, including durability, low maintenance, and resistance to corrosion and weathering. They are lightweight, which can reduce the load on structures, and are recyclable, contributing to sustainability. Additionally, aluminum sheets can be easily shaped and painted, offering design flexibility. However, they have some disadvantages, such as being a poor insulator, which may require additional insulation for energy efficiency. They can also dent or scratch easily and may require more frequent replacement due to their lower resistance to impacts compared to materials like stone or brick. Furthermore, while they reflect heat well, they can also conduct cold, potentially leading to issues in extreme temperature conditions.