Roofs are also referred to as the "fifth facade of the building".
While the term can be applied mainly to flat roofs, in the case of roofing systems on framings, this sloping component is an obvious physical presence that contributes to the symbolic image of the building.
The multitude of construction materials, construction systems and requirements that must be met make the topic of roofs on roof framings a challenge in the design process, and mistakes – in design, execution, or operation – can induce serious pathologies that are difficult – sometimes impossible – to eliminate. This is why this topic requires knowing the principles of hygro and thermotechnics, acoustics, fire safety, and ensuring building ventilation. Or, at the opposite pole, knowledge of the effects that defective structures have on buildings (topics addressed in other continuing education modules that we provide).
The image, defined by the volume of the building and the construction materials that are used, must be doubled by the coherence of the constructive composition which, as in the case of any component of the building envelope, must meet the corresponding requirement levels:
On the other hand, the envelope has become, in the last two decades, if not a plant for producing energy from unconventional sources, at least an element for conserving energy and improving the external microclimate of the building, contributing to reducing the urban heat island effect. This theme correlates and is also found – partially, of course – in the modules of mimetic architecture and eco-architecture or the so-modern nZEB design of buildings.
This course is not addressed exclusively to architects but... to all partners in the act of creating a building, from designers, contractors, system manufacturers, students from technical faculties and... anyone who is curious to learn something more.
