Founded in 1874, Berger makes building products for residential and commercial buildings and describes itself as a North American source of more than 200 products. Its long-standing focus includes roof drainage, moisture protection, snow retention and ventilation systems, and the company reports operating five factories. Berger is part of the Gibraltar Building Products portfolio of brands.
CertainTeedCertainTeed is a North American manufacturer of exterior and interior building products and a subsidiary of Saint-Gobain. Founded in 1904, when George Brown began manufacturing asphalt roof shingles, the company now reports more than 60 manufacturing facilities across the United States and Canada. Its portfolio includes building-envelope products as well as architectural ceiling and wall systems.QUAKERTOWN, PA
IKO IndustriesFounded in Calgary in 1951, family-owned IKO Industries is a vertically integrated global manufacturer of roofing and building-envelope products. Across more than 35 plants in North America and Europe, it makes products for residential and commercial roofing, insulation, and waterproofing; its history includes producing building paper before beginning shingle production in 1954.HAGERSTOWN, MD
OmniMaxOmniMax is a national manufacturer of residential building products focused on roofing accessories and rainware. The company reports 17 manufacturing locations across the U.S. and Canada and supplies products through brands including Amerimax, Berger, Flamco, Verde, Millennium Metals, Nu-Ray Metals and Hancock Enterprises.FEASTERVILLE TREVOSE, PA
TAMKO Building Products LLCFounded in 1944, TAMKO Building Products LLC manufactures residential roofing shingles and waterproofing products. Its name is an acronym for Texas, Arkansas, Missouri, Kansas and Oklahoma, the company’s original trade area; TAMKO says its trade area now covers all 50 states. The company is known for its Heritage and Proline shingle series and describes its roofing products as made at U.S. facilities using some globally sourced component materials.FREDERICK, MD