Built-Up Roofing

Definition

Built-up roofing (BUR) is a traditional roofing method consisting of multiple plies of roof felts laminated together with bitumen.

Purpose

Built-up roofing systems provide a robust and waterproof roof covering, ideal for flat and low-slope roofs. The multiple layers of felt and bitumen create a strong barrier against water penetration, enhancing the longevity and durability of the roof.

Examples of Use

1. Office Buildings: BUR systems are frequently used in office buildings due to their long-lasting protection against leaks and environmental damage.
2. Retail Stores: Retail establishments benefit from the durability and reliability of BUR, which helps protect inventory and maintain a comfortable indoor environment.
3. Educational Institutions: Schools and universities often use BUR systems for their low maintenance and long-term cost-effectiveness.

Related Terms

• Membrane Roofing: A type of roofing system that includes BUR, which uses membranes or sheets to form a protective barrier.
• Asphalt Roofing: Roofing that uses asphalt-based materials, similar to the bitumen used in BUR systems.
• Cold Applied Roofing: A method of applying roofing materials without heat, sometimes used in conjunction with BUR systems.

Notes

Installing BUR systems requires careful attention to detail to ensure that each layer is properly aligned and bonded. Regular inspections and maintenance can help extend the life of a BUR system and prevent costly repairs.