What is the expected lifespan of a properly installed BUR?

The expected lifespan of a properly installed Built-Up Roof (BUR) system is typically around 20 years. BUR systems, which consist of multiple layers of roofing felt and bitumen, are known for their durability and longevity when installed correctly. They offer solid protection against weather elements, reflecting UV rays while also insulating the building.

One of the key factors contributing to this lifespan is the quality of the materials used and the expertise of the installation process. When BUR systems are installed with high-quality materials and proper techniques, they can exhibit fewer issues with leaks or degradation over time, which supports their long-term effectiveness.

In the context of the other time frames provided, while some roofing materials might have shorter lifespans (like the 10 to 15-year estimates), BUR stands out due to its construction and material properties, positioning it as a more durable option that can reliably last around two decades in many conditions. Therefore, having an expectation of 20 years aligns with industry standards for BUR systems when properly installed and maintained.