CertainTeed has helped shape the building products industry for more than 110 years. Founded in 1904 as General Roofing Manufacturing Company, today CertainTeed is North America’s leading brand of exterior and interior building products, including roofing, siding, fence, decking, railing, trim,insulation,gypsum and ceilings.


Tamko Building Products LLC is a leading independent manufacturer of residential roofing shingles crafted with American pride for more than 75 years. The popular Heritage shingle series features the best roofing colors on the market that are backed by a brand name recognized for its rich history, core values of honesty and integrity, quality products and processes, authority with building professionals.


The company was founded in 1951. Today, more than 60 years after its founding, IKO has grown to be among the world’s largest exporters of asphalt shingles. IKO is now a worldwide enterprise with more than 25 manufacturing plants in Canada, the United States, England, Belgium, Holland, France and Slovakia. The company ships roofing products to 96 countries around the globe.


Atlas has long been the worlds largest producer of roll roofing and saturated felt underlayment. For over 30 years, Atlas has served homeowners, contractors, builders, and distributors by manufacturing quality roofing material, unmatched support, and long-term commitment to the industry.


Malarkey Roofing Products is a Portland Oregon based roofing manufacturer that provides performance-driven residential, commercial, and sustainable roofing solutions with unparalleled service and integrity. Since 1956 the company has consistently valued innovation and is motivated to provide committed to long- term solutions products.

Owens Corning

Owens Corning provides innovative products, manufacturing technologies, and sustainable solutions that address energy efficiency, durable infrastructure, and labor productivity.


GAF is a roofing manufacture in North America, with plants located across the U.S.