Fort Worth's 1960s–1980s downtown commercial buildings carry original or once-recovered built-up roofing that is now 40-60 years old. We assess, document, and plan replacement or recover for legacy BUR systems — including coal-tar systems that require specific handling.

Built-up roofing — alternating plies of bitumen-saturated felt mopped with hot asphalt or coal-tar pitch — was the commercial roofing standard from roughly 1920 through the 1980s. Fort Worth's downtown commercial core still carries significant BUR inventory: the older office buildings on Houston and Commerce streets, the mid-century warehouse district near the T&P Rail Market, and the original Sundance Square-area commercial buildings that haven't been re-roofed since the 1970s or 1980s.

We do not install new built-up roofing. The system has been supplanted by single-ply membranes that perform as well or better with lower installation cost and without the open-kettle hot-mop operation. What we do is assess, recover, and replace existing BUR — a significant part of the Fort Worth downtown commercial maintenance and capital market.

Legacy BUR in Fort Worth falls into two categories: asphalt BUR and coal-tar BUR. The distinction matters for tear-off and replacement planning. Coal-tar is a recognized carcinogen with specific handling and disposal requirements. Buildings installed with coal-tar BUR — common in Fort Worth commercial construction through the early 1970s — require a different removal protocol and contractor certification. We identify the system type at inspection before any scope work is done.

Coal-Tar vs. Asphalt BUR in Fort Worth's Legacy Stock

Coal-tar pitch BUR was the preferred commercial specification through the 1960s in Fort Worth — more chemically resistant than asphalt, longer service life, and self-healing to minor damage. The T&P Warehouse building on West Lancaster, the older Sundance Square block buildings, and several of the 1950s-1960s mid-rise office towers on Throckmorton and Houston Street almost certainly contain coal-tar BUR. You can tell by the roof surface — coal-tar has a darker, glossier appearance than asphalt BUR and often shows the characteristic alligatoring pattern of aged coal-tar.

Coal-tar BUR contains polynuclear aromatic hydrocarbons (PAHs) — documented carcinogens under OSHA and EPA standards. Tear-off of coal-tar BUR requires: respiratory protection for all crew members in the exposure zone, HEPA filtration on any vacuum or dust-control equipment, segregated waste disposal with appropriate manifest, and contractor certification for hazardous material handling. We carry this certification and manage the disposal process. Owners need to know that coal-tar tear-off is a different cost band than standard asphalt BUR tear-off — we document this clearly in the scope before contract.

Asphalt BUR — still in service on Fort Worth commercial buildings built through the mid-1980s — does not carry the same hazardous handling requirements. Standard tear-off and disposal apply. We typically see asphalt BUR in the range of 4-ply and 5-ply assemblies, surfaced with gravel or smooth asphalt flood coat, in various states of aging depending on maintenance history.

BUR Recovery and Replacement Options for Fort Worth Owners

Recovery over sound BUR — if moisture cores show dry insulation and the BUR surface is intact — is the most economical path to extending the roof asset. A mechanically attached TPO or modified bitumen system installed over prepared BUR gives the building a new warranted membrane without the cost of full tear-off. The BUR becomes an additional layer of insulation and drainage plane. We have recovered BUR systems on downtown Fort Worth buildings with good results when the core results support it.

Full replacement is required when cores show significant insulation saturation, when the deck shows corrosion or structural softening at inspection ports, or when the roof system has reached its structural limit (multiple previous recover layers). Full replacement on a coal-tar BUR building requires hazardous material tear-off, deck inspection and replacement where corroded, full insulation installation to current energy code, and new membrane installation. It is the most expensive scope but the only honest answer when the building's condition requires it.

We do not recommend doing nothing with a failing BUR system on a Fort Worth downtown building. Deferred replacement of a leaking BUR roof leads to deck corrosion in Fort Worth's storm-season moisture environment. What is a $10-15/sq ft replacement decision today becomes a $20-25/sq ft decision when the deck needs replacement — plus tenant interior damage in the interim.

Have a Fort Worth building with aging BUR?

We will walk the roof, identify the BUR type (coal-tar vs. asphalt), pull cores, check deck condition, and give you a written recover-or-replace assessment.

Built-Up Roof Systems for Fort Worth commercial buildings

Commercial Roofers Fort Worth provides built-up roof systems as part of a commercial-only roofing practice serving Fort Worth, TX and the surrounding metro. We focus exclusively on flat and low-slope commercial roofs — offices, warehouses, retail, schools, medical, and industrial facilities — so the work is scoped by people who do this every day, not as a sideline to residential roofing.

Good built-up roof systems starts with knowing the roof. Before we recommend anything we document the existing assembly, its age and condition, drainage and flashing details, and any active or hidden moisture. That assessment drives a written scope so building owners and managers understand the problem, the options, and the cost before committing.

• Documented roof condition assessment up front
• Clear, itemized written scope of work
• Manufacturer-approved materials and installation details
• Coordination around occupancy and rooftop equipment
• Photo documentation and warranty paperwork at closeout
• A maintenance plan to protect the investment afterward

What to expect from the process

Once a scope for built-up roof systems is approved, we coordinate access, staging, and any tenant notifications so your building keeps operating. Commercial roofs rarely come offline, so we sequence the work to protect interiors, rooftop equipment, and daily operations throughout. You stay informed with progress updates rather than surprises.

At completion we hand over closeout documentation — photos, warranty registration, and a recommended maintenance schedule. For Fort Worth owners managing one building or a portfolio, that record keeps warranties valid and makes future budgeting straightforward.

Why it matters for Fort Worth owners

Deferring built-up roof systems usually costs more than doing it on schedule. Small membrane and flashing issues turn into wet insulation, interior damage, and shortened roof life. Staying ahead of them with the right scope and documentation protects both the building and the budget.

Call Commercial Roofers Fort Worth to discuss built-up roof systems for your Fort Worth commercial property. We will assess the roof, give you a written scope, and recommend the most cost-effective path — repair, restore, or replace.