"Architectural Engineering" (AE) is a multifaceted discipline exploring how the design, construction and operation of a building come together. It focuses on many areas; lighting, heating, cooling, ventilation, sustainability, electrical systems, mechanical systems, fire protection …etc. Therefore, architectural engineering combines the principles of design and engineering to create usable buildings. Like all engineers, architectural engineers apply math and science to problem solving. They often work on-site with a team of other engineers, architects and construction workers. Thus, architectural engineers encompass a number of disciplines of engineering including civil, mechanical, and electrical engineering as part of their day-to-day role.