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Structural Glazing

Structural glazing is usually a frameless assembly of glass where a portion of the structural load is taken by the glass itself rather than by a supporting frame. The use of structural glazing often provides a brighter enclosed space, clear visibility into and out of the area, and a feeling of lightness compared to other types of structure.

Structural glazing systems allow streamlined curtain walls of glass to be built that are attached using silicone bonding, or anchored by means of rods, cables, glass fins or other unobtrusive ways.

Types of structural glass assembly can include:
• Glass façades and canopies
• Glass floors
• Frameless glass roofs and roof lights
• Glass balustrades and staircases
• Glass walls and partitions
• Lift shafts and atria
• Frameless windows
• Shower enclosures

Silicone Structural Glazing

Silicone structural glazing is the use of a silicone sealant for the structural transfer of loads from the glass to its perimeter support system and retention of the glass in the opening.

Glass is not usually used as a structural member, and so the support framework must be of sufficient strength and flexibility to absorb all loads caused by wind, thermal expansion or building movement. Back up mullions maybe required for glass thickness 6mm or less, and in all instances where insulating glass is specified. Opacified spandrel must have trim in the back of the opacifier to ensure glass-to-silicone adhesion.