What structural support systems ensure a structural glazing facade remains stable over decades?

Structural glazing façades depend on rigid aluminum or steel sub-frames, structural brackets, backup mechanical restraints, and a load-transfer mechanism designed to distribute wind and gravity loads safely. The silicone joint transfers lateral loads to the main frame, while dead-load supports hold the glass weight. Backup restraints such as concealed pins or pressure plates prevent the glass from detaching if the silicone degrades. Anchors connecting the mullions to the main structure must comply with tensile and shear performance standards. Engineers design movement joints to accommodate building drift, thermal expansion, and vibration without stressing the glass. Corrosion-resistant materials and protective coatings ensure longevity. Periodic inspections verify structural integrity and adhesive performance.