Time-TestedMulti-Layer Protection.
The original commercial flat roof system with over 100 years of proven performance. Multiple waterproofing layers deliver redundant protection for demanding applications.
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(614) 324-9797Built-Up Roofing.
Built-up roofing (BUR) is the original flat roofing system, protecting commercial buildings for over a century. It consists of multiple alternating layers of bitumen and reinforcing fabrics, creating a continuous waterproof membrane.
While newer single-ply systems have gained popularity, BUR remains the preferred choice for heavy foot traffic, historic buildings, and applications requiring the redundancy of multiple waterproofing layers.
Industry Pioneer
The original commercial flat roof system
Why Choose Built-Up Roofing?
BUR's multi-layer construction provides redundant waterproofing and exceptional durability for demanding applications.
Multi-Layer System
Multiple alternating layers of bitumen and reinforcing fabrics create redundant waterproofing protection.
Proven Performance
Over 100 years of successful commercial roofing applications. The original flat roof system.
Puncture Resistant
Multiple reinforcing plies provide excellent resistance to punctures, tears, and foot traffic.
UV Protection
Gravel or mineral cap sheet surface protects underlying layers from UV degradation.
Repairable
Damaged sections can be cut out and patched without replacing the entire roof system.
Long Lifespan
Properly installed and maintained BUR systems regularly achieve 20-30 years of service.
Where BUR Excels.
Built-up roofing is particularly well-suited for these applications where its unique advantages shine.
Historic Buildings
Maintains original appearance and compatibility
Government Facilities
Proven track record meets procurement requirements
Heavy Foot Traffic
Multiple layers resist punctures and wear
Equipment-Heavy Roofs
Supports HVAC units and maintenance activity
Budget Replacements
Can overlay existing BUR systems
Schools & Universities
Long-term value for public institutions
Professional BUR Installation.
Our experienced crews follow time-tested installation methods refined over decades of commercial roofing.
Consultation
Free assessment of your building needs
Inspection
Detailed evaluation of deck condition
Design
Custom system specification
Installation
Professional multi-layer application
Warranty
Manufacturer warranty activation
Consultation
Free assessment of your building needs
Inspection
Detailed evaluation of deck condition
Design
Custom system specification
Installation
Professional multi-layer application
Warranty
Manufacturer warranty activation
Compare Other Flat Roof Systems
Explore modern alternatives to traditional built-up roofing.
Built-Up Roofing FAQs.
Built-up roofing consists of alternating layers of bitumen (asphalt or coal tar) and reinforcing fabrics called felts or plies. Typically 3-5 plies are applied, creating a continuous, sealed membrane. The surface is finished with gravel, mineral granules, or a cap sheet for UV protection.
A properly installed BUR roof typically lasts 20-30 years. Some well-maintained BUR systems have exceeded 40 years of service. Regular maintenance, proper drainage, and protecting the gravel surface are key to maximizing lifespan.
Yes, BUR remains an excellent choice for certain applications. While single-ply membranes have become more popular for new construction, BUR excels on roofs with heavy foot traffic, historic buildings requiring period-appropriate materials, and situations where existing BUR can be overlaid.
Gravel provides excellent UV protection, adds ballast weight, and protects against physical damage. Cap sheet offers a smoother walking surface, is easier to inspect for damage, and allows for more design flexibility. We'll recommend the best option for your application.
In many cases, yes. A new BUR system can often be installed over an existing BUR roof if the deck is sound and building codes permit (typically limited to two roof systems). This saves on tear-off and disposal costs.
BUR offers superior puncture resistance and a longer track record than single-ply membranes. However, single-ply systems like TPO are lighter, faster to install, and offer better energy efficiency. We'll help you determine which is best for your specific situation.
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Proven ProtectionThat Lasts.
Trust the roofing system that's protected commercial buildings for over a century. Schedule your free assessment today.
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Tell us about your building and we'll prepare a detailed BUR proposal.
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