What is a likely consequence of the aging or degradation of BUR materials?

The consequence of the aging or degradation of Built-Up Roofing (BUR) materials primarily leads to increased vulnerability to leaks and punctures. As BUR systems age, the materials can begin to break down due to factors such as UV exposure, weathering, and consistent temperature fluctuations. This degradation may cause the roofing material to lose its elasticity and strength, making it more susceptible to punctures from hail, falling debris, or even foot traffic. Additionally, as the integrity of the seams and layers weaken, the likelihood of water infiltration increases, leading to leaks.

The aging process does not improve durability or thermal performance of the roofing material; in fact, it typically has the opposite effect. Established BUR systems may lose some weight over time due to the breakdown of materials, but this is not a desirable outcome, as it is often accompanied by deterioration in performance. Instead, addressing the vulnerabilities caused by aging through regular maintenance and inspections is important to prolong the lifespan of the roofing system.