Specialty Granules

With over 90 years of superior service, Specialty Granules is a leading aggregates and mining company supplying specialized products to the North American building materials industry.

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Chemistry for the Future

Our scientists and technical specialists work to develop breakthroughs in chemistry and material science to reduce the environmental impact of building, address customer needs, and set standards for the industry.

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  • 1923

  • 500

  • 5

  • 40,000

    Product Shipments/Year
Innovative Solar Reflection

To increase energy efficiency, we developed SolarShield, the highest solar-reflective granules on the market to meet steep requirements without sacrificing color options.

The Art of Science

In 2016 we renovated our central laboratory to create a world-class Technical Center dedicated to testing and designing innovative new ideas.

Algae Defense

Algae growth, which causes black streaks and damages roofs, affects many regions of the United States. To fight this, we formulated Copper Color Guard® roofing granules that inhibit algae growth and help maintain the color of shingles.

Build Your Career at SGI

Our team is our greatest asset and we’re committed to helping our people develop their skills and further their education. Join us.