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Built-Up Roofing

Built-Up Roofing (BUR) is a time-tested and widely used roofing system known for its exceptional durability and longevity. It is a multi-layered roofing assembly that consists of alternating layers of bitumen (asphalt) and reinforcing materials, such as fiberglass or organic felts. These layers are built up over time to create a strong and reliable roof membrane.

Built-Up Roofing offers several advantages that make it a popular choice for commercial and industrial buildings. Its layered construction provides excellent protection against weather elements, including UV radiation, extreme temperatures, and heavy rainfall. The bitumen layers offer exceptional waterproofing properties, ensuring a watertight and reliable roof.

One of the notable benefits of Built-Up Roofing is its ability to withstand foot traffic and resist punctures, making it suitable for roofs with regular maintenance requirements or HVAC equipment installations. It also offers great fire resistance, as the multiple layers of bitumen act as a barrier against flames and reduce the spread of fire.

In addition to its strength and durability, Built-Up Roofing is an energy-efficient solution. The multiple layers of bitumen provide good thermal insulation, reducing heat transfer and helping to maintain a comfortable indoor temperature. This can result in energy savings and lower heating and cooling costs.

When properly installed and maintained, Built-Up Roofing can have a long service life, often lasting 20 to 30 years or more. Routine inspections and maintenance can extend its lifespan even further, making it a cost-effective roofing solution in the long run.

If you are looking for a reliable and robust roofing system, Built-Up Roofing offers a proven track record of performance and durability. Its resistance to weather elements, fire, and foot traffic, along with its energy-saving properties, make it a trusted choice for commercial and industrial applications

Roofing Systems


Asphalt Built-up Roofing can be used in both new construction and existing buildings. This system gets the name "built-up" because of the multiple layers of alternating asphalt and saturated felts or fiberglass mat roofing plies.

These systems can be long lasting and durable when properly installed with quality bitumen, felts and flashings. Surfaces (gravel, coatings, or granules) extend the life of a BUR roof by providing weatherproofing and protection from UV exposure.

BUR systems have low flexibility and therefore are only appropriate on roof decks with minimal movement. BUR systems require periodic maintenance to maximize their service life.


Coal Tar built-up roofing provides one of the most durable roofing systems known due to its inherent waterproofing and weathering characteristics. Similar to asphalt BUR, coal tar BUR consists of multiple layers of alternating coal tar and saturated felts and topped with a flood coat and gravel surface. Coal Tar is limited to level and low slope roofs. Coal tar has a relatively low softening point so it must always include a gravel surface.

Coal Tar roofing is self-healing. Due to the low softening point, on warm days it will actually flow and heal itself of minor cracks and punctures.

Coal tar roofing systems are a time-proven roofing system.

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