Built-Up Roofing (BUR) in Passaic County, NJ

Built-up roofing -- commonly referred to as BUR or tar and gravel roofing -- is the oldest and most proven flat roofing system in continuous commercial use. For over a century, building owners have relied on the alternating layers of bitumen and reinforcing fabric that define BUR systems to provide reliable, long-lasting waterproofing on flat and low-slope structures. At Paterson Roofing Contractors, we install and maintain built-up roofing systems on commercial buildings throughout Passaic County, bringing traditional craftsmanship and modern materials together to deliver the redundant, time-tested protection that BUR has always provided. From the industrial buildings along the Paterson waterfront to the commercial properties along Route 46 in Clifton and Wayne, our BUR installations protect Passaic County businesses with the most proven flat roofing technology available.

A built-up roof is constructed on-site by alternating layers of bitumen -- either hot-applied asphalt or cold-applied adhesive -- with sheets of reinforcing fabric called ply sheets. A typical BUR system consists of three to five plies, with each ply adding an independent waterproofing layer to the assembly. The result is a monolithic, multi-layered membrane that provides redundancy no single-ply system can match. If one layer is punctured or compromised, the remaining layers continue to protect the building. This inherent redundancy is why BUR remains the specification of choice for buildings where waterproofing failure would cause catastrophic consequences -- manufacturing facilities, cold storage buildings, data centers, and any structure where even a minor roof leak could destroy valuable contents or disrupt critical operations.

The flood coat and aggregate surface that tops a traditional BUR installation is a defining visual characteristic that also serves critical functional purposes. The flood coat of hot-applied asphalt encapsulates the top ply sheet, creating a continuous waterproofing surface. The aggregate -- typically river-washed gravel or slag -- embedded in the flood coat provides ballast against wind uplift, protection against UV degradation of the bitumen, improved fire resistance, and physical protection against foot traffic and hail impact. For the commercial buildings in Totowa and Woodland Park where rooftop HVAC maintenance requires regular foot traffic, the gravel surface of a BUR system withstands repeated foot traffic without the membrane damage that lighter-weight roofing systems can suffer.

Passaic County's older commercial building stock includes thousands of existing BUR installations, many of which have been in service for 20, 30, or even 40 years. When these roofs require replacement, building owners face a choice: replace with a modern single-ply membrane or install a new BUR system that maintains the proven multi-ply protection they have relied on. Many owners -- particularly those with warehouses, manufacturing facilities, and multi-family buildings in Passaic and Paterson -- choose to replace with a new BUR system because they understand the value of redundant waterproofing from decades of experience. Our crews are among the diminishing number of commercial roofing teams that maintain full proficiency in hot-applied BUR installation, a skill that requires specialized training and years of field experience to perform at the highest quality level.

Modern BUR systems incorporate significant improvements over the installations of decades past. Current ply sheets use fiberglass and polyester reinforcement that is stronger and more dimensionally stable than the organic felts used in earlier generations. Modified bitumen interply sheets can be integrated into BUR assemblies to add flexibility and crack resistance. Reflective cap sheets and cool-roof coatings are available to improve energy performance without sacrificing the multi-ply protection that defines BUR. These material advances allow us to build on BUR's century of proven performance while addressing modern requirements for energy efficiency and environmental compliance.

We also install BUR systems with smooth surface finishes for buildings where gravel aggregate is not appropriate. Smooth-surface BUR uses a mineral-surfaced cap sheet or a reflective coating instead of aggregate, reducing the roof weight and creating a surface that is easier to inspect visually. This option is particularly suitable for buildings with limited structural capacity, buildings where maintaining roof drains is a priority (gravel can migrate into drain baskets), and properties where a clean, reflective roof appearance is desired. Our project managers evaluate your building's structural capacity, maintenance access patterns, and energy goals to recommend either aggregate or smooth-surface finish for your BUR installation.

Built-up roofing delivers a service life of 25 to 40 years when properly installed and maintained, making it one of the longest-lasting commercial roofing options available. Our installations are backed by manufacturer warranties from GAF, Firestone, and Johns Manville, with coverage ranging from 15 to 25 years depending on the system specification. Combined with our workmanship warranty, your BUR installation receives comprehensive protection throughout its service life. Contact us for a thorough assessment and built-up roofing proposal for your Passaic County commercial property.