This course explores aspects of building construction helpful to understanding the built environment and deals with the intrinsic connection between conceptual design and technological aspects of a building's structural materiality: reinforced concrete, precast and pre-stressed concrete, steel framing systems; building envelop: building science, curtain walls, window walls, glazing and roofing systems; fire protection design and the evolution of an industrialized method of designing and assembling buildings. The course studies materials and methods as applied to renovation projects and building additions. The course includes preservation and enhancement of existing materials and construction assemblies as well as the study of the juxtaposition of new materials and assemblies with those of the existing building. Studies are based on a variety of facets including visual, cost, climate, code and environment.