Control System

Control System

The SageGlass control system uses proprietary algorithms to tint and clear the glass. The system also includes advanced tools to manage daylighting, glare, energy use and color rendering based on occupancy, light levels, or integration with building management systems. SageGlass is controlled automatically with sensors or can be part of a building management system (BMS).  But you always have the option to control the glass by manual override to change the glass quickly if desired. Whatever your primary goal in daylight design may be, we can design a system that meets your needs.







To effectively manage daylight, our glass can be programmed to operate in customized zones. Zoning design depends on many factors: building orientation, occupant location and needs, interior space design, and the primary purpose of the glazing (glare or heat control). We offer two types of zoning: (1) standard zoning, where groups of panes are controlled together, and (2) in-pane zoning, where a pane of glass is partitioned into two or three discrete sections, each of which can be controlled separately from the other.


Zoning strategies are highly important in ensuring the optimized balance of light quality, visual and thermal comfort and energy performance in a space. On a facade with standard zoning, one row, for example, can be fully tinted to control directional glare, and one row can be left clear to provide a more neutral color quality, while the remaining panes can be tinted to an intermediate level, as needed, to optimize the appropriate amount of daylight and solar control in the space. With floor-to-ceiling glass, zoning is essential to occupant comfort. When panes are very large, and glare control is needed, the space would feel uncomfortably dark if all of the glass was tinted. With in-pane zoning, only the portions of the glass that have direct sun on them would be tinted to 1% VLT; the remaining areas could be set to tint levels that optimize the daylight, energy and light color quality.  In this way the building occupant would experience a feeling of natural light in the space while enjoying superior glare control.




Intermediate states allow you to further fine-tune your control over daylight. When it’s not extremely bright or hot out, but some shading is needed, you can partially tint the glass, allowing in ample—but not too much—daylight. Whatever your daylighting design needs, our system is fully customizable and can be programmed to your specifications.



Intermediate states allow fine-tuning of daylight design. Here the glass on the right is zoned to transmit at (in rows from top to bottom) 6%, 18% and 60% visible light, which provides abundant daylight but mitigates the sun’s most direct rays.