Saint-Gobain launches glass circular economy program at two plants in California to recycle windshield glass used in insulation production


In partnership with leading recycler Shark Solutions, used windshield glass from Saint-Gobain Sekurit’s Garden Grove, California facility is being diverted from landfill and recycled. The resulting cullet is then shipped to CertainTeed Insulation’s facility in Chowchilla, California, where it is used as a key recycled ingredient in the manufacture of fiberglass insulation.

The ambitious project, launched earlier this year, comes as Saint-Gobain continues to roll out its new global ‘Grow and Impact’ strategy, which includes reducing waste and increasing the circular economy of raw materials in its production processes, making Saint-Gobain Gobain can achieve a goal of net-zero carbon footprint by 2050.

“As we work to make the world a better home, it’s important that we all think outside the box and develop innovative approaches to achieve our sustainability goals,” said Mark Rayfield, President and CEO of Saint-Gobain North America and CertainTeed. “I congratulate our Garden Grove and Chowchilla, California plants on creating a true, unique circular economy program that will be a model for others and will ensure that the glass we use in our production is recycled in ours and reused, reducing our environmental footprint.”

The launch of this circular economy project in California follows several other recent actions taken by the company to solidify its commitment to sustainability, including the announcement of another circular economy pilot program at CertainTeed Gypsum’s facility in Buchanan, New York, with which the facility is partnering three others New York company to reclaim plasterboard and reuse it as feedstock for their production. Further measures are:

Highlights Q4: October-December:

  • Last month, Saint-Gobain announced technology upgrades at its CertainTeed Roofing facility in Shakopee, Minnesota that are expected to save 5,000 MWh of electricity per year.

  • Saint-Gobain and TotalEnergies have signed a 10-year renewable energy contract that is expected to offset nearly 33% of Saint-Gobain North America’s Scope 2 emissions from electricity, and the company launched its new power plant on its flagship campus in Worcester, Massachusetts, which is expected to reduce the site’s carbon emissions by 50%.

Highlights Q3: July-September:

  • Saint-Gobain announced it will save two million gallons of water per year at its CertainTeed Social Circle, Georgia siding plant after installing a smart water meter system and upgrading manufacturing facilities.

  • The Company also announced its intention to install equipment at its Palatka, Fla. gypsum plant that will increase the recycled content in its wallboard products by 18,000 tons per year while reducing the site’s carbon emissions by 2,260 tons per year, as well as upgrades to key ones Equipment at its gypsum plant in Buchanan, New York, saves nearly 700,000 kWh of electricity per year.

Highlights Q2: April – June

  • Saint-Gobain announced a CA$91 million investment in its Montreal gypsum plant, creating the first zero-carbon wallboard manufacturing facility in North America and increasing the plant’s production capacity by 40%.

  • In addition, the company also announced how its newly installed recycling technology at its gypsum wallboard plant in Nashville, Arkansas would save 65,000 tons of material per year from landfill and how a partnership at its SageGlass electrochromic glass manufacturing facility in Faribault, Minnesota, would save savings would bring 1,000 tons of material per year from landfills over the next five years.

Highlights Q1: January – March

  • Saint-Gobain North America announced the installation of heat recovery technology at its CertainTeed gypsum manufacturing facility in Vancouver, British Columbia, reducing the facility’s carbon emissions by 10% and improving its energy efficiency.

  • The company also announced a $32 million investment in upgraded equipment at its CertainTeed insulation plant in Chowchilla, California, reducing the plant’s carbon footprint by more than 4,000 tons per year.

With over 120 manufacturing locations across the United States, every current and prospective member of the company’s team plays a critical role in achieving its sustainability goals. For a current list of open positions at all Saint-Gobain locations, including Garden Grove and Chowchilla, visit the company’s careers website.

About CertainTeed

Headquartered in Malvern, Pennsylvania, CertainTeed has shaped the building products industry for more than 115 years through the responsible development of innovative and sustainable building products. Founded in 1904 as the General Roofing Manufacturing Company, the company slogan “Quality Made Certain, Satisfaction Guaranteed” inspired the CertainTeed name. Today, CertainTeed is a leading North American brand of exterior and interior construction products including roofing, siding, solar panels, fencing, railings, siding, insulation, drywall and ceilings.

About Saint Gobain

Saint-Gobain is a global leader in lightweight and sustainable construction, developing, manufacturing and selling materials and services for the construction and industrial markets. Its integrated solutions for the renovation of public and private buildings, lightweight construction and the decarbonization of construction and industry are developed through a continuous innovation process and offer sustainability and performance. The group’s commitment is based on its corporate purpose “MAKING THE WORLD A BETTER HOME”.

44.2 billion euros in sales in 2021

167,000 employees in 76 countries

We are committed to achieving carbon neutrality by 2050

For more information about Saint-Gobain, visit and follow us on Twitter @saintgobain.

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