In the reading #1 we read about building systems that is divided in three major system that are structural, enclosure and mechanical system. for my understating building systems is the order and steps that have to follow any architect that is going to design any type of building. Even though, structural system is based on those primary elements that any building is really have to included as columns, beams, walls, floors, and roof structural. Enclosure system is about those secondary elements that any building need such as, window, door, exterior wall, and roof. Mechanical systems are based on the elements need to be or live in any building such as electricity, water, air.

Every architect need a space build anytime by using some structure and materials, materials such as masonry, stone, wood, steel and concrete. All this materials are essential for any building project however every part of the project will need to use any of this material to get a perfect building up.