Reliable Built-Up Roofing Systems
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What is Built-Up Roofing?
Built-Up Roofing, commonly known as BUR, is a roofing system composed of multiple layers of bitumen (asphalt or coal tar) and reinforcing fabrics. This layered structure, often called "plies," provides exceptional durability and water resistance, making it ideal for low-slope and flat roofs. The system typically includes a layer of insulation and a protective surface layer, such as gravel or reflective coatings, to enhance its performance and lifespan.
BUR has been a popular choice for over a century due to its time-tested technology and reliability. The redundancy of its layers ensures that even if the top layer is damaged, the underlying layers continue to protect the building from water intrusion. This makes BUR an excellent option for both commercial and residential buildings with low-slope roofs.
- Long-lasting durability with a lifespan of 15-30 years.
- Superior water resistance and UV protection.
- Excellent for buildings with high foot traffic.
- Cost-effective over the roof's lifespan despite higher initial costs.
- Requires professional installation due to its complexity.
Installation and Maintenance
he installation of a BUR system is labor-intensive and requires a high level of expertise. It involves applying alternating layers of bitumen and roofing felts, with the final layer being a protective surfacing material like gravel. Regular maintenance and inspections are crucial to extend the roof's lifespan and maintain its performance. Common maintenance tasks include checking for blisters, cracks, and ensuring proper drainage to prevent water damage.
BUR systems are known for their robustness and ability to withstand harsh weather conditions. However, they do come with some drawbacks, such as the complexity of installation and potential issues with odor during the application process. Despite these challenges, BUR remains a preferred choice for many due to its proven track record and effectiveness in protecting buildings.
Advantages and Considerations
One of the significant advantages of BUR is its multiple layers, which provide enhanced protection and redundancy. This makes BUR systems highly resistant to water, UV rays, and physical damage. Additionally, the gravel or coated surface layer helps in reflecting sunlight, reducing heat absorption, and improving energy efficiency.
While BUR systems offer many benefits, it's essential to consider the installation complexity and potential higher costs compared to single-ply systems. Proper installation by experienced professionals is crucial to ensure the roof's longevity and performance. Regular maintenance and timely repairs are also necessary to keep the BUR system in optimal condition.
Roof Type
Ideal For
Durability
Installation Method
Maintenance Needs
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