This document discusses contemporary building materials including brick, reinforced concrete, stone, wood, pre-engineered steel, aluminum, glass, stainless steel, external finishes, and flooring. It provides details on the properties, uses, advantages, and disadvantages of each material. Brick, reinforced concrete, and stone are among the oldest and most versatile materials. Newer materials like pre-engineered steel, glass, and aluminum enable unique building designs but often require more energy and technology. A variety of external finishes and false ceilings allow customization of interior and exterior surfaces.