Built-up roofing (BUR), also known as gravel and tar roofing, is one of the most durable and time-tested solutions for flat and low-slope commercial roofs. This multi-layered system consists of asphalt sheeting, bitumen, and protective surfacing, creating a waterproof, weather-resistant roofing membrane.
Built-Up Roofing systems are designed to
last, with lifespans of 20-30 years when properly maintained. The layered construction of bitumen and reinforcing fabrics creates a tough barrier against weathering, UV rays, and physical damage.
The alternating layers of bitumen and ply sheets provide exceptional waterproofing, ensuring your roof remains leak-free even in harsh conditions. BUR systems are ideal for flat or low-slope roofs prone to water pooling.
BUR systems are low-maintenance thanks to their robust design. The gravel or reflective top layer shields the roof from wear and tear, reducing the need for frequent repairs and saving you time and money.
The multi-layered design and gravel topping of BUR systems offer excellent thermal resistance and UV protection. This helps regulate building temperatures, potentially lowering your energy costs year-round.