Expert Tar & Gravel Roof Installation & Repair

Tar and Gravel Roofs, also known as built-up roofing (BUR), are a tried and true solution for flat or low-slope roofs, prized for their durability and affordability. At Bob Piva Roofing, we specialize in installing, repairing and maintaining these tough systems for homes and businesses in National City, Rancho Bernardo, Scripps Ranch and most of San Diego County. Whether you’re a homeowner looking for a long-lasting roof or a commercial property manager prioritizing fire resistance, tar and gravel roofing offers unequaled protection against the elements. With over 60 of local experience, our team ensures your roof meets the highest standards of quality and performance. Visit our Service Areas to see how we serve your neighborhood.

2. What is a Tar and Gravel Roof?

A tar and gravel roof is made up of multiple layers of asphalt (or tar) and reinforcing fabrics, topped with a layer of gravel. This built-up roofing system is ideal for flat or low-slope roofs, providing waterproofing and UV resistance. The gravel acts as a shield against foot traffic, hail and fire, while the asphalt layers create a leak-proof barrier. Used for both residential and commercial roofing, tar and gravel systems are versatile and long-lasting. At Bob Piva Roofing, we tailor these roofs to your needs. Learn more about our comprehensive approach on our Services page.

3. Benefits of Tar and Gravel Roofs

Why choose a tar and gravel roof? Here’s why homeowners and businesses trust this system:

• 25–30 Year Lifespan: With proper care, these roofs outlast many others.
• Weatherproof Design: Gravel protects against UV rays, wind and fire (Class A fire rating).
• Low Maintenance: The gravel layer minimizes wear, reduces repair needs.
• Energy Efficient: Reflective gravel lowers cooling costs in sunny areas.
• Eco Friendly: Recyclable materials make it a sustainable choice.

For commercial properties, tar and gravel roofs also handle heavy equipment and foot traffic with ease. Check out our Gallery to see completed projects in San Diego.

4. Tar and Gravel Roof Installation Process

Our installation process ensures your roof performs for decades:

1. Inspection & Prep: We inspect the roof deck and repair any damage.
2. Layer Application: Alternate asphalt and fabric to create a waterproof base.
3. Gravel Topping: A final layer of gravel for protection and appearance.
4. Drainage Setup: We install roof drains, scuppers and roof vents to prevent ponding water.

Improper installation can lead to leaks or premature wear, so trust our certified team for precision work. Visit our Roof Drains, Scuppers & Roof Vents page to see how we optimize drainage.

5. Maintenance Tips for Tar and Gravel Roofs

Extend your roof’s life with these tips:

• Biannual Inspections: Catch issues early, especially before rainy seasons.
• Clear Debris: Leaves and dirt can clog drains.
• Replenish Gravel: Fill bare areas to maintain UV protection.
• Address Minor Cracks: Prevent small issues from becoming big repairs.

For professional maintenance, our Leak & Repair Maintenance plans keep your roof in top shape year-round.

6. Common Repairs for Tar and Gravel Roofs

Even tough roofs need occasional repairs:

• Leak Sealing: Fix cracks in asphalt layers quickly.
• Gravel Loss: Reapply gravel to exposed areas.
• Blistering: Caused by trapped moisture; we repair and reinforce.
• Ponding Water: Upgrade drainage with scuppers or roof vents.

For severe damage, consider Re-Roofing to restore full protection.

7. Tar and Gravel vs. Other Flat Roof Materials

Compare tar and gravel to other options:

• EPDM: Less durable but cheaper up front.
• TPO: Energy efficient but prone to punctures.
• Modified Bitumen: Flexible but requires specialized installation.

Tar and gravel is the best balance of cost and longevity.

8. Cost of Tar and Gravel Roofs

4–4–8 per square foot installed. Cost varies by roof size, materials and labor. While initial cost is higher than EPDM, the 30 year life offers better long term value. Contact us for a custom quote.

Why Bob Piva Roofing?

San Diego’s go-to roofing company. We combine quality with transparency. From Valley Center to Carlsbad, our team provides customized solutions with warranties and 5-star reviews. Learn more About Us or schedule a consultation now!