The Technical Interfaces of the Advanced Envelope Systems

The study examines the applicative coordination procedures for the main types of façade systems composed by the mullions and transoms framing, the structural sealant glazing façade system, the unit façade system, the suspended façade system and the double skin façade system. The analysis focuses, for each of the main façade types, on the technical interfaces in relation to the connection sections, the way parts of the frame profiles are joined and in relation to the enclosure elements. Moreover, the analysis considers the fastenings for the enclosures (glass or opaque) in relation to the frames, noting how they are applied in order to consolidate the construction against water infiltration (with the aid of waterproofing membranes), air infiltration (with the aid of gaskets) and thermal resistance to external environmental stresses. In this regard, the explanation contemplates the specific sections and connections of the frame profiles, aimed at supporting and including the fastening, heat-insulating and sound-insulating materials, especially with regard to the anchoring parts and the relations to the building structures and cladding systems. The study is confirmed in the form of a technical construction guide through the formulation of the attachment methods of the main façade types with respect to the extra- and intradossal surfaces, lateral and roof surfaces: in this case, the analysis observes the interaction with the additional fastening elements towards other components and technological systems. Based on the contents, frame apparatuses and specificities of the individual façade types, the study explores the assembly sequences and joining phases between the structural, closing and finishing elements.