Built-Up Roofing (BUR) Systems in South Texas

Layered strength for long-lasting protection.

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A Time-Tested Flat Roofing Solution

Built-up roofing, commonly referred to as BUR, is one of the most time-tested systems for flat and low-slope commercial roofs. Composed of alternating layers of bitumen and reinforcing fabrics, BUR offers a multi-layered shield against water, heat, and UV damage. At Rio Roofers, we install and maintain BUR systems across South Texas with precision, speed, and high-performance materials built for Gulf Coast climates.

What Is a Built-Up Roofing System?

Built-up roofs use a proven layering technique of bitumen (asphalt or cold-applied adhesive) combined with ply sheets (reinforcing felt or fiberglass). The number of layers—also called plies—can vary depending on insulation needs, building type, and budget. The top layer is usually finished with gravel or a reflective coating for added durability and energy efficiency.

BUR systems are primarily installed on flat commercial structures, warehouses, and industrial buildings across the Rio Grande Valley. Their strength lies in redundancy—each layer adds resistance to moisture intrusion, extreme heat, and daily thermal cycling.

Key Features:

  • Multi-layered waterproofing barrier
  • Excellent fire resistance with gravel surface
  • UV and heat deflection options
  • Adaptable thickness based on project scope
  • Built to handle heavy foot traffic and mechanical systems

Benefits of Built-Up Roofing in South Texas

South Texas roofs endure blistering temperatures, high humidity, and hurricane season winds. Built-up systems excel in this environment due to their weight, seal integrity, and surface resilience. Once installed, they require minimal maintenance while offering decades of protection.

BUR is often chosen for:

  • Long-term cost-effectiveness - While initial installation costs may be higher, the extended lifespan and minimal maintenance needs provide excellent return on investment.
  • Compatibility with rooftop HVAC and solar systems - The sturdy, layered structure provides excellent support for mechanical equipment and green building technologies.
  • Strong wind uplift resistance - Critical in hurricane-prone South Texas, BUR systems are incredibly resistant to being lifted or damaged during high wind events.
  • Seamless surface without weak points - Unlike other systems with seams and joints, BUR creates a continuous membrane that reduces leak potential.

Related: Learn about our other commercial options like TPO Roofing and Modified Bitumen, or explore our Commercial Roofing overview.

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Our Built-Up Roofing Installation Process

A typical BUR installation involves several steps:

1
Surface Preparation

We clean and inspect the deck for damage or moisture, ensuring a solid foundation for the new BUR system. Any structural issues are addressed before installation begins.

2
Layering Base Sheets

Ply sheets are set with hot asphalt or cold adhesive to create the foundational layers of the roofing system, providing the initial waterproof barrier.

3
Bitumen Application

Each ply is sealed with bitumen to create a watertight bond. This process is repeated for each layer, with three to five plies being typical for commercial applications.

4
Gravel or Reflective Coating

The top layer protects against UV and physical impact, while potentially adding energy efficiency through reflective materials that reduce heat absorption.

The timeline ranges from 2–7 days depending on building size, deck condition, and weather. Our team ensures your BUR system is built to code and warranty-backed.

Maintenance & Longevity

Built-up roofs typically last 20–30 years with minimal upkeep. However, regular inspections every 1–2 years are recommended to address:

  • Blistering or bubbling from trapped moisture
  • Cracks in the bitumen from thermal cycling
  • Punctures due to foot traffic or debris
  • Loose gravel displacement over time

We offer full Roof Maintenance services including repair, recoating, and moisture testing.

Related: Interested in the differences between BUR and Flat Roof systems? Visit our flat roof guide to compare build types.

Where Built-Up Roofs Work Best

Choosing the right roofing system depends on your building type, long-term budget, and exposure to elements. Built-up roofs are ideal for:

Warehouses

Large, open spaces with minimal roof penetrations and need for maximum durability.

Industrial Facilities

Manufacturing plants and processing centers with heavy equipment and harsh conditions.

Schools & Government

Buildings requiring long lifespans and minimal maintenance over decades of use.

Office Complexes

Commercial buildings with flat roofs needing superior weatherproofing and energy efficiency.

If you're considering a durable, time-tested solution that can be tailored to your facility's load-bearing structure, BUR is worth evaluating. Our experienced team at Rio Roofers offers free consultations and site inspections to determine if built-up roofing is your best investment.

Why Choose Rio Roofers for Built-Up Roofing?

At Rio Roofers, we bring 20+ years of flat roof system experience across McAllen, Brownsville, Harlingen, Edinburg, Corpus Christi, and surrounding cities. Our built-up roofing services are fully licensed, code-compliant, and reinforced with industry-grade materials.

We provide:

  • Detailed project planning & transparent estimates
  • High-performance bitumen & reinforced ply systems
  • Thermal insulation integration
  • Warrantied workmanship & manufacturer coverage
  • Ongoing maintenance programs

Additional Resources

Learn more about our comprehensive services:

If you're building new or restoring an aging commercial structure, we're here to help. Let's build a roof that lasts.

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