Windows and Glazing
Here are more glazing systems available in the market.
Glazing Systems Types
CASSETTE/ PANEL
A cassette system combines characteristics of the panel, stick, and veneer systems. The most common makeup of a cassette system is built up of a primary structural mullion system, which is stick-built. This provides the support and facilitates the bondage of the glass panels. The glass lites are factory assembled into minimal frames, which form an integral connection with the primary mullion system. Also, a cassette system can be designed to be fully shop-glazed, requiring no application of sealant during field installation.
A panel system is usually constructed from a framed glass lite. The framed panel is then point-supported by a supporting structural system, while the glass remains continuously hold up on two or four sides. This also lets the panel be stepped away from the support system to visually lighten the façade. Panel systems can be pre-fabricated, benefiting from assembly under factory-controlled conditions.
POINT-FIXED BOLTED
Point-fixed bolted is drilled and directly fixed on a bearing structure with a mechanical fitting, fastening screws, crossing (or not) glass, and tightening plates. Specially designed off-the-shelf hardware systems are readily available. Cast stainless steel spider accessories are most commonly used to tie the glass to the supporting structure, although personalized fittings are often developed for larger façade projects. The glass must be designed to accommodate bending loads and deflections resulting from the fixing method. For overhead applications, insulated laminated glass panels involve making 12 holes per panel, which can represent a cost constraint on some projects.
POINT-FIXED CLAMPED
Point-fixed clamped is an alternate solution that eliminates the drilling. Instead, the glass is clamped at the perimeter, mostly known as a “pinch-plate” system. With a spider-type system, the spider part is rotated 45 degrees for the spider arms to align with the glass seams.
A narrow blade of metal penetrates the spider through the center of, and parallel to, the glass joint. A small clamp plate on the outside surface of the glazing plane is then fixed to the blade, clamping in place the two glass panels on either side of the seam.
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