A Built-Up Roof (BUR) is a traditional roofing system made of multiple layers of bitumen and reinforcing fabrics, often finished with a gravel or mineral surface. This layered construction creates a durable, waterproof barrier that can last decades when maintained properly. Over time, however, BURs can develop issues due to UV exposure, weather fluctuations, and ponding water, which can cause the layers to weaken, blister, or separate. Regular maintenance typically involves inspecting the roof twice a year—ideally in the spring and fall—for any visible signs of damage such as cracks in the bitumen, loose gravel, or clogged drains. Simple DIY checks like walking the roof perimeter to look for pooling water, swollen areas, or cracks in the surface can help you spot early signs of wear. Keeping the roof clear of debris and ensuring gutters and downspouts are clear will also prevent water damage.
While some visual inspections and minor cleaning can be done safely on your own, it's important to call a professional roofer for a more thorough assessment every few years or if you notice persistent problems like leaks or extensive blisters. When discussing maintenance with a contractor, ask how they handle BUR repairs, particularly whether their methods comply with your roof’s warranty terms. A good question to ask would be, "Can you perform a full roof scan, including checking the condition of the underlying layers, without compromising the roof’s integrity or warranty?" Another key question might be, "What specific maintenance steps do you recommend to extend the life of my BUR roof, and how often should these be performed?" Proper upkeep can significantly prolong your roof’s service life, protecting your home and avoiding costly repairs.