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Artwork by Herbert Paus for a 1920's era Certain-teed advertisement


Since 1904 CertainTeed has helped shape the building products industry. Founded as the General Roofing Manufacturing Company, it has evolved into North America’s leading brand of exterior and interior building products. A subsidiary of Saint-Gobain, one of the world’s largest and oldest building products companies, CertainTeed and its affiliates have more than 6,300 employees and more than 60 manufacturing facilities throughout the United States and Canada.

Today, as we have been in the past, and will continue to be in the future, we are committed to the responsible development of sustainable, system-based building solutions. Our Malvern, PA, headquarters itself is a living laboratory that allows us to showcase—and evaluate—the innovative products we offer, and the impact they have in a practical environment. 

The adjacent Malvern Innovation Center is the research and development hub for CertainTeed Roofing, Insulation, and Ceilings. The MIC enables us to lead our industry in groundbreaking manufacturing and product innovation. 


Early 20th century advertisement for General Roofing Manufacturing Company
A New Idea

George M. Brown sees wood roofing shingles as a major contributor to building fires. He begins the search for a safer alternative. He establishes the General Roofing Manufacturing Company and perfects individual asphalt roofing shingles. His slogan: “Quality Made Certain, Satisfaction Guaranteed.” 



Great Products, Easy Installation 

Individually cut asphalt shingles are introduced. 

Residential Roofing


Innovation Brings Exceptional Growth 

By this year, 20% of the asphalt roofing sold in North America is produced by General Roofing. 



A Heritage of First-in-Class Creations 

Manufacturing advances continue, and in 1958 Certain-teed develops the first fully automatic roofing shingle packaging machine. 



Continuing to Cover More Than Roofing 

Certain-teed begins producing solid vinyl siding. 


The entrance to Saint-Gobain Tower in Paris, France
Meet Saint-Gobain 

Certain-teed becomes a part of the Saint-Gobain family, increasing its potential for excellent service, innovation solutions, and a commitment to sustainability in construction.




Efficiency in Focus 

CertainTeed Roofing unveils Landmark Solaris® Solar Reflective Roofing Shingles, which help reduce energy cost while increasing curb appeal. 



Recognized for Impact in Sustainability 

CertainTeed wins ENERGY STAR® Partner of the Year for the third consecutive year. 


apollo-tile-II-bedingfield-ctr (1).jpg
A Brighter Future 

CertainTeed’s 56th solar patent is granted. 

The Future is Sustainable. Right now.

See CertainTeed’s Positive Impact