Built-Up Roofing (BUR) Systems

Aastro Roofing - Florida's Top-Rated Roofing Company


Built-Up Roofing (BUR) Systems, offered by Aastro Roofing, are a durable and cost-effective solution for commercial properties. BUR systems provide excellent waterproofing, UV protection, and longevity by comprising multiple layers of bitumen and reinforcing fabrics. Ideal for flat or low-sloped roofs, our expertly installed BUR systems ensure robust protection and minimal maintenance for your building.

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Built-Up Roofing (BUR) System

What is a Built-Up Roofing (BUR) System?

A built-up roof (BUR) is a system of roofing made up of two or more layers of material such as asphalt, tar paper, and felt. This type of roof can provide protection against heavy rainfall and high winds.

Many homes and buildings have a roof that is made up of multiple layers, which helps to keep them weather-proof. The more layers there are, the more protection the home has from rain and snow. However, the roof’s protection will depend on how many layers it has. Built-up roofs can be constructed in a few different ways, depending on the needs of the building.

Built-Up Roofing System photo in Pompano Beach, FL
Photo from above showing the top of a built-up roofing system in West Palm Beach, FL

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What are the Benefits of Built-Up Roofing (BUR)?

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    Insulated systems create high thermal performance

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    Multi-layer protection

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    Fire and Wind uplift performance

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    Redundancy of layers reduces the chance of leakage

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    Exceptional strength and durability

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    Successful 100+ year track record

Flat roofs generally made of the following roofing materials:

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Built-Up Roof
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Modified Bitumen Roof
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Membrane (Single-Ply) Roof

Trust Aastro Roofing for Reliable Built-Up (BUR) Roofing Systems

Discover the time-tested durability and proven reliability of Built-Up (BUR) Roofing Systems with Aastro Roofing. Our BUR systems are meticulously crafted using multiple layers of asphalt and reinforcing materials, providing exceptional protection against the elements and ensuring long-lasting performance. With a track record of excellence and a commitment to quality craftsmanship, Aastro Roofing is your trusted partner for all your roofing needs. Contact us today to learn more about our Built-Up (BUR) Roofing Systems and elevate the protection of your property with confidence.

Why Choose

The two common types of built-up (BUR or modified bitumen used in commercial, flat or low-sloped roofing systems are Atactic Polypropylene (APP) and Styrene-butadiene-styrene (SBS).

Atactic Polypropylene (APP) is a thermoplastic modification that contains either polyester or fiberglass mat. Theses membranes provide insulation against hot and cold climates.

Styrene-butadiene-styrene (SBS) is a premium modified bitumen made out of asphalt and synthetic rubber. The membranes are engineered specifically for elasticity making it an exceptionally flexible material for flat roofs.

Both APP and SBS systems are extremely durable, low maintenance and increase the longevity of your roof.

If your curious about which roofing system is best for your roof, give Aastro Roofing a call and set up a no-obligation roofing inspection. We’ll walk you through all of your options to help you make the best choice for your investment.


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