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Dynamic glass from SAGE helps Cottage Grove City Hall manage the sun for city business

Feb. 14, 2013

A new state-of-the-art city hall and public safety building in Cottage Grove, Minn., is using dynamic glass from SAGE to control and optimize natural daylight so the city council can better conduct its business.

The Cottage Grove City Hall installed a 30-ft x 10-ft curtain wall of SageGlass® in the city council chambers to provide natural light and a view to the outdoors throughout the day, with the ability to darken the glass on demand when needed for showing videos and presentations.

The newly constructed 67,000 square-foot, $15 million facility, which came in $2 million under budget, was designed to improve the way Cottage Grove serves its residents. According to architect John McNamara, AIA, LEED AP and partner at Wold Architects and Engineers, the room where SageGlass was installed required an advanced glazing technology to manage problematic sun conditions.

“Daylighting is an important design consideration for both energy efficiency and for the well-being of the people inside the facility,” McNamara said. “But the sun can also cause unwanted glare at times when you need to view video. SageGlass allowed us to maximize daylight yet darken the chamber on demand without having to resort to motorized shades, blinds or other costly sun controls.”

SageGlass is electronically tintable dynamic glass that maximizes daylight and outdoor views in buildings while controlling glare and heat gain. The glass can darken or clear manually or automatically to save energy and help keep building occupants continuously comfortable throughout the day.  

In the City Hall council chambers, which contain TVs, projector screens and presentation areas, light sensors mounted on the curtain wall automatically adjust SageGlass’ tint throughout the day to provide just the right amount of natural light. It can also be tinted manually with the push of a button when council business requires a dark environment.

Heidi Baruth, project manager at Capital City Glass, which installed the SageGlass curtain wall, said working with electrochromic glazing for the first time was surprisingly easy. “The installation went well and it works seamlessly with the light sensor controls,” she said. “We’re excited about being able to offer customers an advanced glazing product that solves more complex sun control problems for a variety of projects in the future.”

About SageGlass

SageGlass®, a product of Saint-Gobain, is advanced dynamic glass that can be electronically tinted or cleared to optimize daylight and improve the human experience in buildings. SageGlass manages the sunlight and heat that enter a building, significantly reducing energy consumption while improving people’s comfort and well-being. It can reduce a building’s cooling load by 20% and HVAC requirements up to 30%. It is a smarter, more elegant solution than conventional sun controls such as mechanical window shades, blinds and louvers. With SageGlass you can control sunlight and glare without shades or blinds while maintaining the view and connection to the outdoors. SageGlass is manufactured in Faribault, Minn., in the heart of “the Silicon Valley of the window industry,” and is a wholly owned subsidiary of Saint-Gobain of Paris, the world’s largest building materials company.

For more information visit:

Website: www.sageglass.com

Twitter: twitter.com/Sage_Glass

Facebook: Facebook.com/SageGlass

LinkedIn: linkedin.com/company/sageglass

YouTube: Youtube.com/SAGEElectrochromics

About Saint-Gobain in North America

Saint-Gobain has its North American headquarters in Valley Forge, Pennsylvania. As the world leader in sustainable habitat, Saint-Gobain is committed to inventing solutions to help professionals and communities around the world build and renovate comfortable, healthy, economical and energy-efficient buildings. The company has more than 250 locations in North America and approximately 15,000 employees. In the United States and Canada, Saint-Gobain reported sales of approximately $6.2 billion in 2014.

Recognized as a 2009 and 2010 ENERGY STAR Partner of the Year by the U.S. Environmental Protection Agency, Saint-Gobain earned the 2011, 2012, 2013, 2014 and 2015 ENERGY STAR Sustained Excellence Award, the highest level of recognition for outstanding contributions to protecting the environment through energy efficiency. For more information about Saint-Gobain in North America, visit www.saint-gobain-northamerica.com and connect with the company on Facebook and Twitter.       

About Saint-Gobain

In 2015, Saint-Gobain is celebrating its 350th anniversary, 350 reasons to believe in the future. Backed by its experience and its capacity to continuously innovate, Saint-Gobain, the world leader in the habitat and construction market, designs, manufactures and distributes high-performance and building materials providing innovative solutions to the challenges of growth, energy efficiency and environmental protection. With 2014 sales of $54.6 billion, Saint-Gobain operates in 64 countries and has over 180,000 employees. For more information about Saint-Gobain, visit https://www.saint-gobain.com/en and the twitter account @saintgobain