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Built-Up Roofing Versus TPO: An In-Depth Comparison

Updated: Apr 11


Within the commercial roofing industry, the comparison between Built-Up Roofing (BUR) and Thermoplastic Polyolefin (TPO) systems is a common discussion. This article, enhanced with insights from Commercial Roofing Albany NY, offers an in-depth analysis of these two favored roofing choices, detailing their distinct features and operational aspects.


Key Features of Built-Up Roofing (BUR)

Built-Up Roofing, a stalwart in the roofing industry, boasts a legacy spanning over a century. This time-tested method involves layering several tiers of roofing felt bonded with bitumen, culminating in a top coat of aggregate, such as gravel, which imparts a robust finish. The multi-layered structure of BUR offers exceptional durability and redundancy, ensuring a high level of waterproofing and resistance to environmental elements. Its gravel surface not only shields against UV radiation but also provides a sturdy platform capable of enduring regular foot traffic, making it an ideal choice for buildings with higher maintenance or utility requirements on the roof.


Advantages of Built-Up Roofing

  • Waterproofing Excellence: The layered construction of BUR provides superior waterproofing capabilities.

  • Durability Against Elements: With its multiple layers and protective gravel surface, BUR stands resilient against harsh weather conditions.

  • Fire Resistance: The materials used in BUR are inherently fire-resistant, adding an extra layer of safety.

  • UV Protection: The gravel or stone top layer effectively reflects UV rays, reducing thermal load.

Considerations for Built-Up Roofing

While BUR is renowned for its durability and protective features, it is crucial to acknowledge its potential for water pooling, which can lead to soft spots and structural weaknesses if not properly managed.


Key Features of TPO Roofing

Thermoplastic Polyolefin (TPO) represents a more contemporary approach to roofing, gaining momentum in the commercial roofing sector since the late 1990s. Characterized by its single-ply membrane, TPO is lauded for its lightweight and flexible nature, especially in colder climates. The installation process involves heat-welding the seams, ensuring a seamless and watertight finish. TPO's reflective surface is particularly beneficial in hot climates, where it significantly reduces cooling costs by reflecting UV rays.


Advantages of TPO Roofing

  • Energy Efficiency: TPO's reflective surface dramatically lowers heat absorption, leading to energy savings.

  • Flexibility and Lightness: The material is adaptable to various roof designs and is lighter compared to traditional options.

  • Resistance to Elements: TPO is designed to withstand environmental pollutants, chemicals, and UV radiation.

  • Variety of Colors: Available in multiple colors, TPO can be aesthetically pleasing and adaptable to building design.

Considerations for TPO Roofing

Despite its benefits, TPO roofing is less tolerant of heavy foot traffic compared to BUR, necessitating careful consideration of roof usage patterns when selecting this material.


Making the Right Choice: BUR or TPO

Deciding between Built-Up Roofing and TPO involves considering factors such as the building's location, the expected roof traffic, energy efficiency needs, and maintenance capabilities. BUR might be the preferred choice for buildings that require robustness and foot traffic accommodation, while TPO could be ideal for those prioritizing energy efficiency and modern aesthetics.


In Albany NY, Commercial Roofing Albany NY stands ready to guide clients through the intricate process of selecting the ideal roofing system tailored to their specific needs, ensuring both performance and longevity.


Conclusion

In summary, both BUR and TPO roofing systems offer distinct advantages and considerations. BUR is renowned for its durability and traditional appeal, whereas TPO offers modern efficiency and aesthetic flexibility. The decision between the two should be informed by the specific requirements and constraints of the building in question, ensuring a roofing solution that provides long-term value and protection.


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