Built-up roofing, often shortened to BUR, is a time-tested roofing system renowned for its durability and longevity.
It’s particularly popular for flat or low-slope roofs where water tends to pool, demanding a robust and waterproof solution. Understanding the components and installation process of a built-up roof can help you make informed decisions for your commercial property.
Components of Built-Up Roofing
Built-up roofing consists of multiple layers of asphalt and reinforcing fabrics, creating a thick and seamless membrane. This layered approach provides exceptional protection against the elements, including UV radiation, heavy rain, and extreme temperatures. The top layer is often finished with a reflective coating or gravel to further enhance its weather resistance and energy efficiency.
A built-up roof comprises several key components that work together to create a durable and waterproof barrier:
- Bitumen:This is the primary waterproofing material in BUR, usually asphalt or coal tar pitch. It’s applied in hot, liquid form, creating a strong bond between layers.
- Reinforcing Fabrics:These fabrics, typically fiberglass or polyester, are embedded between the bitumen layers to add strength and stability to the roof.
- Surfacing:The final layer protects the underlying membrane from UV rays and weathering. It can be a reflective coating, gravel, or a combination of both.
Flashing:Flashing seals vulnerable areas like roof penetrations and edges, preventing water infiltration.
Installation Process
Installing a built-up roof is a multi-step process that requires skilled professionals:
- Surface Preparation:The existing roof surface is thoroughly cleaned and prepared to ensure proper adhesion of the new layers.
- Base Sheet Installation:A base sheet is applied to the prepared surface, acting as a foundation for the subsequent layers.
- Bitumen Application:Hot bitumen is mopped or sprayed onto the base sheet, followed by the placement of a reinforcing fabric.
- Multiple Layers:This process of applying bitumen and fabric is repeated several times, creating the desired thickness and strength.
- Surfacing Application:The final surfacing material is applied to protect the membrane and complete the installation.
Advantages of Built-Up Roofing
Built-up roofing offers several benefits that make it a popular choice for commercial buildings:
- Durability:BUR systems are known for their exceptional durability, often lasting 20 to 30 years or more with proper maintenance.
- Waterproofing:The multiple layers of bitumen and fabric create a highly effective waterproof barrier, ideal for flat roofs.
- Fire Resistance:BUR systems have inherent fire-resistant properties, providing an added layer of safety.
- Energy Efficiency:Reflective coatings or gravel surfacing can help reduce energy costs by minimizing heat absorption.
- Versatility:BUR can be adapted to various roof shapes and sizes, making it a versatile option for commercial applications.
Comparing BUR to Other Roofing Systems
Built-up roofing stands out among other commercial roofing options due to its unique characteristics:
- BUR vs. Single-Ply:While single-ply membranes offer faster installation, BUR boasts superior durability and puncture resistance, making it a preferred choice for high-traffic roofs.
- BUR vs. Metal Roofing:Metal roofs excel in longevity and aesthetics, but BUR often proves more cost-effective upfront, especially for large, flat surfaces.
- BUR vs. Modified Bitumen:Modified bitumen shares similarities with BUR but incorporates polymer additives for enhanced flexibility and UV resistance. The choice between them depends on specific project requirements and budget considerations.
Consulting with a roofing professional like Apex Commerical Roofing can help you evaluate the pros and cons of each system and select the most suitable option for your building. We offer quality service for all your roofing needs. So contact us at 856 203-6108 or 1 800 231-2941. You can also come see our store front at 811 Church Road, Cherry Hill, New Jersey 08057.
What is Built-Up Roofing?
Built-up roofing remains a reliable and cost-effective solution for flat or low-slope commercial roofs. Its multi-layered construction, durability, and waterproofing capabilities make it a popular choice among building owners and contractors.
Understanding the components, installation process, and maintenance requirements empowers you to make informed decisions regarding your roofing needs.
Remember, investing in a quality built-up roof and adhering to proper maintenance practices ensures long-term protection and value for your commercial property.
If you’re considering a new roof or need to replace an existing one, explore the benefits of built-up roofing and consult with a qualified professional to determine if it’s the right fit for your building. Come see where, Apex Commerical Roofing Services, can help you.
Visit Apex Commercial Roofing LLC at Our Cherry Hill Location
811 Church Rd #105,
Cherry Hill, NJ 08002,
United States
For professional roofing services, we invite you to stop by or reach out to us.
