Is built up roofing right for your commercial building?

Built-up roofing (BUR) is a popular choice for commercial buildings due to its durability, longevity, and ability to provide excellent protection against the elements. However, whether BUR is right for your commercial building depends on several factors. Here’s a breakdown to help you determine if BUR is suitable for your commercial roofing needs:

Advantages of Built-Up Roofing (BUR):

1. Durability: Built-up roofing systems consist of multiple layers of asphalt-saturated felt or ply sheets, which are then topped with a waterproofing layer of asphalt or coal tar pitch. This multi-layered construction provides exceptional durability and resistance to damage from weather, foot traffic, and UV exposure.
2. Longevity: BUR roofs have a long lifespan, typically lasting 20 to 30 years or more with proper maintenance. The built-up layers of roofing materials create a strong, resilient barrier against water infiltration, making BUR a cost-effective roofing option over the long term.
3. Waterproofing: BUR roofs are highly effective at preventing water penetration, thanks to the multiple layers of waterproofing materials. The asphalt or coal tar pitch used in BUR systems forms a seamless, waterproof membrane that protects the underlying structure from water damage and leaks.
4. Fire Resistance: BUR roofs are inherently fire-resistant due to the use of asphalt or coal tar pitch, which has excellent fire-retardant properties. This makes BUR an ideal choice for buildings where fire safety is a priority, such as commercial and industrial facilities.
5. Low Maintenance: Once installed, BUR roofs require minimal maintenance to maintain their performance and integrity. Routine inspections and occasional repairs are typically all that’s needed to keep a BUR roof in good condition, making it a cost-effective roofing solution over its lifespan.

Considerations for Built-Up Roofing (BUR):

1. Installation Complexity: BUR installation is more labor-intensive and time-consuming compared to some other roofing systems, such as single-ply membranes. The multiple layers of roofing materials require skilled installation by experienced roofing contractors, which can increase the upfront cost of installation.
2. Weight: BUR roofs are heavy due to the multiple layers of materials, which can pose structural challenges for some buildings. Before installing a BUR roof, it’s essential to ensure that the building’s structure can support the additional weight of the roofing system.
3. Odor and Fumes: The application of asphalt or coal tar pitch during BUR installation can produce strong odors and fumes, which may be a concern for occupants of the building or nearby properties. Proper ventilation and safety measures should be implemented during installation to mitigate these issues.
4. Environmental Impact: Asphalt and coal tar pitch, which are common components of BUR systems, are derived from petroleum and have environmental considerations associated with their production and use. However, efforts are being made to develop more sustainable roofing materials and practices within the roofing industry.

In summary, built-up roofing (BUR) can be an excellent choice for commercial buildings seeking a durable, long-lasting roofing solution with excellent waterproofing and fire resistance. However, it’s essential to consider factors such as installation complexity, weight, odor and fumes, and environmental impact when determining if BUR is right for your commercial building. Consulting with a qualified roofing contractor can help you assess your roofing needs and determine the best roofing system for your specific requirements and budget.