The Connections Between the Framing Profiles and the Glazing Envelopes

The study examines the functional and application procedures of the gaskets with respect to the façade systems in order to prevent the transmission of air and water loads. In this regard, the analysis focuses on the connections between the framing and the enclosure elements of the envelope, in accordance with the compensation of height differences in order to guarantee impermeability, airtightness and insulation. The technical execution of the gaskets considers the production criteria at the level of cutting, connection and bending as well as the positioning and the installation methods. The study observes and investigates the types of framing elements in which the gaskets are inserted, emphasizing the specific function with respect to the connection interfaces. In particular, the assembly between the mullions and the transoms results from the insertion of the gaskets into the cavities, projected frontally, in the form of the crawler gaskets. With regard to the contact parts, for which only compressive actions perpendicular to the surfaces can be transmitted, the need for dimensioning in such a way as to reduce stresses in the load transmission zones is detected. Next, the study explores the assembly procedures of glass enclosures with respect to façade frames, highlighting the construction sequences and the devices for on-site construction.