What Is a Built Up Roof?

What Is a Built Up Roof?

Looking for a long-lasting, low-maintenance roofing solution that can handle Hyde Park’s unpredictable weather? A built up roofing system—commonly known as BUR roofing—has been trusted for over a century to protect commercial and flat-roof buildings. 

If you’re a property owner searching for a durable, cost-effective option, understanding how a built up roof works can help you make the best decision for your property’s long-term protection.

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Key Takeaways

✔ Built up roofing (BUR) is a multi-layered flat roofing system known for exceptional durability and waterproofing.

✔ A well-installed built up roof system can last 20–30 years or more with proper maintenance.

✔ BUR roofs offer superior UV, fire, and weather resistance—ideal for Hyde Park’s changing climate.

✔ Though heavier and slower to install, BUR roofing provides long-term value and low upkeep.

Partnering with experts ensures your built up roof is installed safely, efficiently, and built to last.

rooftop design

How a Built-Up Roof Is Constructed 

Base

Every built up roof system starts with a solid base layer, usually made from fiberglass or polyester sheets. This foundation supports the upper layers and ensures strong adhesion to the roof deck.

Bitumen and Plies

Next come the alternating layers of bitumen (asphalt) and reinforcing plies. These waterproofing layers are what make BUR roofing so reliable. The more layers, the more protection your built up roof provides against leaks and punctures.

Surfacing

The final layer, called the surfacing, may include gravel, a mineral cap sheet, or a reflective coating. This not only enhances the roof’s appearance but also shields it from sun exposure, extending the lifespan of your BUR roof.

Advantages of a Built Up Roof System

Long-Lasting

One of the biggest advantages of built up roofing is its longevity—typically lasting 20 to 30 years or more. Its multi-layered design helps it withstand harsh weather year after year.

Durable

The multiple plies in a built up roof system give it superior durability and puncture resistance, ideal for flat roofs that see frequent foot traffic or equipment installations.

Excellent Waterproofing

Thanks to its redundant waterproof layers, a BUR roofing system provides unmatched moisture resistance, making it perfect for Hyde Park’s rainy and snowy seasons.

Superior UV and Fire Resistance

With its gravel or mineral finish, a BUR roof naturally resists UV damage and offers strong fire protection—qualities that make it a safe, energy-efficient choice for commercial properties.

Sound Dampening

The density of built up roofing materials helps reduce noise from rain, hail, and HVAC systems, keeping indoor environments quieter and more comfortable.

man working on rooff

Disadvantages of a Built Up Roof System

Heavy

A built up roof can be quite heavy. Property owners should ensure their building structure can support its weight before installation.

Complex Installation

Installing a BUR roofing system requires skilled professionals and more time than single-ply options. However, when done right, the payoff is longevity and strength.

Difficult to Repair

Because of its layered design, locating and repairing leaks in a built up roof system can be challenging without expert help.

Risk of Ponding

Flat roofs may experience water pooling if not properly sloped. Regular inspections and drainage checks help prevent this issue.

BUR Roof vs. Other Roofing Systems 

Compared to single-ply membranes like TPO or EPDM, BUR roofing offers thicker, multi-layered protection. While it takes longer to install, its proven durability and waterproofing often make it a better long-term investment for Hyde Park property owners.

What Is Considered a Built-Up Roof? 

A built up roof consists of at least three layers: base sheet, bitumen, and surfacing. The layers are applied in sequence to “build up” the roof—hence the name. This multi-ply construction is what sets BUR roofing apart from single-layer alternatives.

What Is the Life Expectancy of a Built-Up Roof?

With proper maintenance, a built up roofing system can last 25–30 years or even longer. Factors such as material quality, weather conditions, and regular inspections play key roles in extending its life.

Is a Built-Up Roof Fire Resistant?

Yes. The gravel or mineral coating on a BUR roof acts as a natural fire barrier, giving it excellent fire-resistant properties—an essential safety advantage for both residential and commercial buildings.

How Much Is a Built-Up Roof?

Costs for built up roofing vary depending on materials, labor, and roof size. Although the initial investment may be higher than single-ply options, its long lifespan and minimal upkeep make a built up roof system a cost-efficient solution over time.

Is BUR Roofing Right for Your Property in Hyde Park, NY?

For property owners in Hyde Park, BUR roofing offers exceptional durability, weather resistance, and lasting protection that’s hard to beat. In fact, over 65% of new commercial buildings across North America and Europe now feature flat or low-slope roofing designs that commonly utilize built up roofing membranes.

On-site Job

Frequently Asked Questions (FAQs)

Yes, a built up roofing system can often be installed over an existing roof if it’s structurally sound. A professional inspection ensures the BUR roof won’t add too much weight or trap moisture underneath.

Built up roofing works for both commercial and residential buildings with flat or low-slope roofs. A built up roof system offers the same waterproofing and long-term protection in both settings.

Keep your built up roof clean, remove debris, and inspect it regularly for ponding or cracks. Routine maintenance helps BUR roofing last for decades with minimal repairs.

Yes, solar panels can be safely installed on BUR roofs. The strength of built up roofing supports solar systems well—just ensure proper sealing and load distribution during installation.

A built up roofing system excels in harsh climates. Multiple waterproof layers protect against heavy rain, snow, and UV exposure, making BUR roofing ideal for Hyde Park’s year-round weather.

Work With Experts for Professional Roofing Installation

At Roofing Experts of Hyde Park, we specialize in built up roofing installation, repair, and maintenance. Our team understands the unique weather challenges in Hyde Park, NY, and uses top-quality materials for every built up roof system we install.

Ready to protect your property with a durable BUR roof? Contact Roofing Experts of Hyde Park today for a free consultation and estimate!