Energy codes are used to outline the minimum requirements needed for energy-efficient design and construction, and they can exist at the city, county, state or federal level. Designed to ensure that all new and refurbished metal buildings adhere to certain energy-efficiency standards, these codes exist for both commercial and residential structures.
The two most common energy codes used in American construction include the International Energy Conservation Code and the ASHRAE Standard 90.1 Energy Standard for Buildings except Low-Rise Construction.
