A built-up roof, or BUR, is a sturdy roofing system made up of layers of bitumen, reinforcing fabric, and surfacing materials meticulously assembled to offer superior waterproofing and shield against environmental stresses. This type of roofing is commonly utilized in commercial and industrial settings due to its reliability and longevity. BUR roofs require expertise in their installation, using materials like bitumen, asphalt, and gravel. The process involves layering insulation boards, a base sheet, and a waterproof membrane for peak performance. The benefits of BUR roofs include enhanced protection against weather, energy efficiency, insulation, and cost-effectiveness, making them a wise choice for various properties.
Composition of Built Up Roofs
Comprising multiple layers of bitumen, fabric, and surfacing materials, the composition of built up roofs is engineered to provide exceptional durability and weather resistance. These roofing materials work together to create a strong, waterproof barrier that effectively shields the building from the elements.
Bitumen, a sticky and viscous form of petroleum, serves as the primary waterproofing agent in built up roofs. It is applied in alternating layers with reinforcing fabric, commonly fiberglass or polyester, to add strength and stability to the structure.
The surfacing materials, such as gravel or mineral granules, are then embedded into the top layers of bitumen to protect the roof from UV rays, reduce heat absorption, and enhance its overall longevity.
The combination of these roofing materials and waterproofing methods ensures that built up roofs offer reliable protection against water infiltration, extreme temperatures, and other environmental stressors. This composition is a result of years of refinement in the roofing industry, aimed at providing buildings with robust and long-lasting roofing solutions.
Installation Process of Built Up Roofs
The installation process of built up roofs is a meticulous and structured procedure that requires expertise in roofing systems. To begin, the necessary roofing materials include bitumen, asphalt, and gravel. These materials are built up in layers to create a durable and long-lasting roof.
The first layer typically consists of insulation boards that provide thermal resistance. Next, a base sheet of bitumen or asphalt is applied and secured to the insulation. This is followed by multiple layers of bitumen-saturated felts or fabrics that are mopped or hot-applied to form a waterproof membrane.
Proper installation is essential for the longevity of built up roofs. Maintenance tips include regular inspections for any signs of damage or wear, such as cracks, blisters, or loose seams. Moreover, maintaining a clean roof surface by removing debris and ensuring proper drainage will help prevent water pooling and potential leaks.
Benefits of Built Up Roofs
Constructed with multiple layers of bitumen, asphalt, and gravel, built up roofs offer a range of benefits that make them a popular choice for commercial and industrial buildings.
One of the key advantages of built up roofs is their longevity and durability. The multiple layers of materials provide enhanced protection against weather elements, extending the lifespan of the roof. Moreover, the composition of built up roofs contributes to their durability, making them resistant to damage and wear over time.
Another significant benefit of built up roofs is their energy efficiency, which can lead to cost savings for building owners. The layers of bitumen and gravel help to insulate the building, reducing heat transfer and minimizing the need for excessive heating or cooling. This energy-efficient design not only creates a more comfortable indoor environment but also lowers energy expenses, making built up roofs a cost-effective roofing solution for many commercial and industrial properties.
