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Tar and Gravel Roof Install



Benefits of Tar & Gravel Roofs

Tar & Gravel for Commercial and Flat Roofs


We assemble Tar and Gravel roof systems by alternating laminated asphalt sheets with tar and underlayment. The U.S. has used these roofs for 100+ years because they offer considerable value when installed properly. Nothing quite like the tried and true to give you peace of mind during your decision-making process. Read further to decide if tar & gravel systems are right for your needs.


Benefits of Tar & Gravel Roofs

Durability - 30+ year lifespan.

Maintenance - Very little maintenance is required with annual inspections.

Energy Efficient - These systems are UV resistant due to their light colored rocks. The shape of the gravel scatters light rather than absorbing it, reducing cooling costs in the summer. The multi-layer installation keeps your property insulated, increasing heating efficiency in the winter.

Inexpensive - Tar & Gravel Roofs are some of the most cost-effective commercial roofs to install. They last a long time and the materials are cheap.
Tar and Gravel Roof

Consult with a professional

Despite their durability, tar & gravel roofs must be installed by professionals. The underlayment install and layering technique requires and experienced hand. Otherwise, leaks could become an issue sooner than you’d expect. Do your best to get an annual inspection of your commercial property to catch any issues before they become serious problems.

Tar and Gravel Roof

Drawbacks of Tar & Gravel Roofing Systems

Weight – Tar & Gravel roofing systems are heavy and your structure needs to be assessed for any modifications to strength prior to install.

Leaks – Maintenance professionals walk on commercial roofs and can damage them. If someone steps too hard in the wrong spot, it could drive a rock into the layers and cause a leak as the roof continues to age.

Maintenance – It’s harder to detect leaks since the gravel covers up most visual warnings. This is why you should use a FLIR gun, or some form of Infrared (IR) camera to accurately search for leaks.

Ponding – On any flat roof system, there is the possibility of ponding. Since tar & gravel roofs have extra weight, deformations can become exaggerated and gravel hides moisture.

All this considered, they are still a wonderful option. Just be sure to get annual roofing inspections from your trusted contractor.

Tar & Gravel Roofing System Alternatives

TPO (Thermoplastic Polyolefin)

EPDM (Ethylene Propylene Diene Terpolymer)

Modified Bitumen - Mod-Bit roofing systems are becoming increasingly less popular but still offer a cheaper install if your budget isn’t great for your timing.

Each of these roofing systems offers different benefits to one another. TPO & EPDM are similar, but have a different chemical makeup to purposely change their energy efficiency and durability.

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Aspen Roofing and Exteriors