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• 19:53, 28 May 2025 Roofswiki talk contribs created page Built-Up Roofing (Created page with "= Built-Up Roofing = '''Built-Up Roofing (BUR)''' is a traditional and time-tested flat roofing system composed of multiple layers of reinforcing fabric and bitumen (asphalt or coal tar), topped with a protective surface layer such as gravel or a reflective coating. BUR systems are most commonly found in commercial and industrial applications, particularly on low-slope and Flat Roofs. With a history of over 100 years in use across North Ameri...")