How do aluminum sheets affect the thermal insulation of a building?

Aluminum sheets, due to their high thermal conductivity, can significantly reduce the thermal insulation of a building. They allow heat to transfer easily through them, which can lead to increased heat loss in winter and heat gain in summer. This can result in higher energy consumption for heating and cooling, making the building less energy-efficient. However, when used in combination with proper insulation materials and techniques, aluminum sheets can still be part of an effective building envelope, provided their thermal bridging effects are mitigated.