Built-Up Roofing (BUR) Systems for Commercial Buildings
Proven Strength and Protection with Built-Up Roofing
Built-up roofing (BUR) has been a trusted solution for commercial and industrial buildings for over a century. While the core concept remains the same, modern built-up systems have evolved to incorporate rigid insulation for enhanced energy efficiency and improved installation methods. At MRB Contractors, we install built-up roofing systems that deliver long-term durability, superior weather resistance, and reliable performance.
How Built-Up Roofing Systems Work
A typical BUR system consists of three primary components:
- Bitumen Material
Either hot-applied (heated until liquefied) or cold-applied (adhesive application with no heat or toxic fumes). - Ply Sheets
Multiple reinforcing layers that provide tensile strength and resilience. - Surfacing Materials
Protective top layers such as gravel or stones to shield against sunlight, weather, and physical damage.
Special BUR variations, like ballasted systems, use large stones to secure the roofing without mechanical fasteners — ideal for specific structural needs.
Surfacing Options for Built-Up Roofs
- No Surfacing
Temporary condition during construction; not recommended for long-term use. - Emulsion or Aluminum Coating
Offers a reflective surface but wears over time. - Asphalt Floodcoat
Creates a durable surface that may crack (“alligatoring”) over time. - Gravel Surfacing
The most popular method, embedding gravel in asphalt for superior protection against sun, rain, and debris. - Hybrid Systems
Combining built-up layers with a flexible modified bitumen cap sheet for enhanced performance and adaptability.
Benefits of Built-Up Roofing
Time-Tested Durability
Over 100 years of proven performance.
Energy Efficiency
Modern systems incorporate rigid insulation to reduce energy costs.
Multi-Layer Protection
Superior resistance to leaks, UV rays, and impact.
Protect Property Value
Well-maintained roofs help preserve the value and appearance of commercial properties.
Versatility
Suitable for a wide range of commercial and industrial applications.
What We Evaluate in Every Asset Management Plan
When creating a tailored asset management program, MRB Contractors considers all critical factors:
Roof system type and existing condition
- Roof deck integrity
- Building use and occupancy needs
- Number of roof layers present
- Drainage efficiency and standing water risks
- Moisture intrusion and insulation health
- Manufacturer specifications and maintenance requirements
Every plan is designed specifically for the client’s property to deliver the best possible protection and performance.
MRB Contractors is your experienced built-up roofing ream
MRB Contractors delivers built-up roofing systems with precision, quality materials, and proven installation practices. Our experienced crews ensure your new roof is built to withstand decades of exposure to the elements while optimizing your building’s energy performance.
Get a Built-Up Roofing Quote Today
Ensure your next roofing system stands the test of time. Contact MRB Contractors today to schedule a consultation for a built-up roofing installation or replacement.