What is the general lifespan of a well-installed BUR roof?

The general lifespan of a well-installed Built-Up Roofing (BUR) system is typically in the range of 15-30 years. This longevity is a key characteristic of BUR systems due to their layered construction, which includes multiple plies of roofing felt or membrane, often combined with a protective surface layer such as gravel or a reflective coating. These materials, when properly installed and maintained, create a durable waterproofing system that can withstand various environmental conditions.

The essential factors contributing to this lifespan are the quality of materials used, the installation technique, and ongoing maintenance practices. Regular inspections and timely repairs can further extend the life of the roofing system. In contrast, shorter lifespans such as 5-10 or 10-15 years are often associated with lower-quality installations or subpar materials, which do not provide the same level of durability and protection that BUR roofs are designed for. A lifespan of 30-50 years is more typical of specialized high-performance roofing systems rather than conventional BUR installations.