You could say BUR Roofing Systems invented the game. Having been implemented for over 100 years, this is the most battle-tested system here or anywhere. Predominantly known for its redundancy — meaning its 4+ plies offer multiple layers of protection — and its brag-worthy high-puncture resistance and long-term weather and waterproofing, there’s no system more proven or reliable. There are a variety of different types, including smooth asphalt, ballasted, and cold built-up, each with its own applications, settings, and construction compatibilities.
What is BUR
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Benefits for Commercial Roofs
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- Flexibility in design and installation
- Multiple layers, including up to five plies
- 100+ year service record
- Excellent waterproofing capabilities
- Long service life
- Extremely durable
- Puncture and damage resistance
- Excellent for foot traffic
- Require less maintenance
- 20+ year warranted roof systems available, including no dollar limit warranties
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How are Built-Up Roofs Installed on Commercial Properties?
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- With traditional hot-applied built-up roofing, an asphalt kettle is required to heat and maintain the asphalt at its specified application temperature. Multiple plies of felt are mopped in an overlaying lap fashion (hence built-up), adhered to each other with black hot asphalt.
- The top layer of a built-up roofing system can vary but typically includes either a modified bitumen cap sheet or a flood coat with gravel surfacing.
- A modified bitumen cap sheet can appear as either granule surfaced cap (appearing to be much like the modified roofing products), a smooth cap with a protective coating (silver paint, or elastomeric roof coating), or a gravel surface.
- Cold applied built-up roofing installations are applied in much the same manner as a hot-applied roof, but with cold-applied (usually asphalt-based) adhesive in lieu of hot asphalt.
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