Tar and Gravel Roofing Systems

Industrial Commercial Roofing has a great team that specializes in repairing and installing tar and gravel roofs. Most roofers have very limited knowledge on how to fix tar and gravel roofs. As a result, many roofing companies propose removing the roof and installing a new one which can be extremely costly. Some roofers attempt to pour more asphalt on top of the existing roof with hopes that it will stop leaks. This usually creates bigger problems as well as unexpected results.

Tar & Gravel Roof Repair

Although “tar and gravel” roofs are durable, they are prone to leaks and problems. Usually, leaks occur around flashings, HVAC units, vents and other points of penetration.

An asphalt built-up roofing system (BUR) is a roof constructed with ply felts made with asphalt-impregnated fiberglass and mopping asphalt. The surface is a flood coat made up of asphalt and aggregate (gravel, crushed stone, slag, or marble chips). These roofs consist of several plies of felt installed in shingle fashion. The laminated layers get a top finish of gravel, some of the gravel becomes embedded in the hot asphalt, and some of which lay loose on the surface of the roof.

The purpose of the gravel is to shield the asphalt from the damaging effect of sun exposure. BUR roofs are good roofs but can be difficult to repair at times. Asphalt does not truly provide  Asphalt is not a true water proofer and depends on the positive slope of the roof to maintain its integrity.

Overall, tar and gravel roofs can be durable and long-lasting and can have a lifespan of 20+ years. However, tar and gravel roofing systems do require regular maintenance, such as periodic inspections, cleaning, and repairs to any damage or leaks that may occur. It is important to have a roofing company with experience working on tar and gravels roofs to service and routinely maintain your roof. At Industrial Commercial Roofing, we have in-depth industry knowledge with over 40+ years working on commercial roofing systems.