When most homeowners hear the term roofing tar, they picture the thick, black, pungent substance used on flat commercial buildings or for quick emergency repairs. While modern chemistry has introduced various synthetic alternatives, traditional coal tar pitch and asphalt-based roofing tar remain essential tools in a roofer's arsenal, especially for flat and low-slope structures across North Texas.
At DKG Roofing, with our experience serving Denton County and the DFW Metroplex, we've seen how the right application of roofing tar can save a property from extensive water damage. However, it is a material that requires precision and an understanding of the local climate to be effective. In the heat of a Texas summer, unprofessional application can lead to a messy, ineffective fix.
What Exactly Is Roofing Tar?
Roofing tar is a dark, oily, and highly viscous material derived from either coal tar or petroleum-based asphalt. It is prized in the industry for its incredible waterproofing capabilities. Because it is naturally resistant to UV rays and standing water, it has historically been the go-to choice for flat roofs where 'ponding' water is a common concern.
In our region, characterized by sudden downpours and high-intensity sun, roofing tar serves two primary roles: as a primary roofing membrane (common in built-up roofing or BUR systems) and as a specialized adhesive or sealant for roof repair services. Unlike shingles, which shed water through gravity, tar creates a seamless barrier that keeps moisture out even when the water isn't moving.
The Benefits and Drawbacks for North Texas Properties
Choosing roofing tar comes with a specific set of trade-offs. While it offers superior protection against the elements, it isn't the right fit for every roof type or every property owner. Knowing the pros and cons is essential before deciding on a material for your next roof installation service.
The primary drawback is the scent and the heat. During application, roofing tar releases a strong odor that can be unpleasant for building occupants. Furthermore, because it is black, it absorbs a significant amount of heat. In the Denton area, where summer temperatures regularly exceed 100 degrees, this can increase cooling costs if the roof isn't properly insulated or coated with a reflective top layer.
- Water Resistance: It is one of the few materials that can withstand standing water for extended periods without degrading.
- UV Protection: Tar is naturally resistant to the intense solar radiation we experience in North Texas, helping it stay flexible longer than some untreated plastics.
- Cost-Effectiveness: Compared to some high-end synthetic membranes, tar is often a more budget-friendly option for large commercial flat roofs.
- Self-Healing Properties: In warmer temperatures, tar remains slightly viscous, allowing small cracks or punctures to 'settle' and seal themselves back up.
Common Applications and Use Cases
Roofing tar isn't just for total roof replacements. It is frequently used in smaller capacities to ensure the longevity of a residential roof. For instance, after storm damage, we might use a specialized roofing cement (a thicker version of roofing tar) to secure loose shingles or seal a punctured underlayment.
For commercial property managers in the DFW area, coal tar pitch is often the preferred choice for flat surfaces. Its ability to resist chemical runoff and environmental pollutants makes it a rugged choice for industrial areas. As a veteran-owned business, we take pride in knowing which specific grade of tar is required for the unique architectural styles found in North Texas. Those built-up and pitch systems fall under our commercial and flat roofing services.
- Flat Roof Replacement: It is the foundation of 'tar and gravel' roofs, which are durable and long-lasting for commercial buildings.
- Flashing Sealant: We often use tar-based mastics to seal around chimneys, vents, and skylights where two different materials meet.
- Emergency Leak Mitigation: When a storm hits and a fast fix is needed to prevent interior damage, roofing tar can be applied even in damp conditions to stop a leak.
Maintenance and Inspection Requirements
While roofing tar is tough, the North Texas climate is tougher. The cycle of extreme heat followed by rapid cooling during spring thunderstorms can cause the material to expand and contract. Over time, this can lead to 'alligatoring'—a pattern of cracks that looks like reptile skin. If left unaddressed, these cracks allow water to seep into the substrate. When a spring storm is the likely cause of a split or blister, our storm damage roof repair team can document the condition for you.
Regular roof inspections are the only way to catch these issues early. We recommend checking tar-based roofs at least twice a year—once before the spring storm season and once before the winter. This ensures that any brittle areas are patched and that the waterproof integrity of your property remains intact.
Frequently Asked Questions
Think your roof needs attention?
DKG Roofing serves North Texas with free roof inspections — a roof walk and verbal findings — written itemized quotes, and help navigating insurance claims. Call (940) 497-2833 or request your free inspection online.
Veteran-Owned · BBB Accredited · Insured