Silicone Structural Glazing
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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 typically used as a structural member. Support framing must be of sufficient strength and dexterity to absorb all loads resulting from wind, thermal expansion or building movement. Back up mullions are recommended for glass thickness 1/4" or less, and in all instances where insulating glass is specified. A higher light-transmitting coating may show edge read-through. Insulating glass used in structural glazing must have silicone units. Opacified spandrel must have trim in the back of the opacifier to ensure glass-to-silicone adhesion. The compatibility and adhesive characteristics of the structural silicone are to be confirmed in the early stages of design.
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