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Property managers and homeowners often struggle to maintain safe, attractive and durable asphalt surfaces. Mill-and-pave is almost a brand-new start for your pavement and lasts longer than a sealcoat.
When considering how sealcoating and mill-and-pave compare for your property, consider these five factors.
1. Prevention vs. restoration
Sealcoating is a preventive maintenance treatment. It is a protective layer applied to existing, structurally sound asphalt. According to The Paving Lady, a full-service South Florida asphalt paving company in business since 1985, you can reduce the need for more costly repairs by adding sealcoating, which also improves the property’s curb appeal and value.
A sealcoating is effectively like sunscreen for your pavement, protecting it from UV rays, water and chemical spills that cause oxidation and deterioration. It gives your driveway a rich, black finish.
Mill-and-pave, on the other hand, is a structural repair and restoration process. It involves milling away the top layer of damaged asphalt and replacing it with a fresh layer of pavement. It’s a specific type of high-quality resurfacing process.
This causes less foundation damage than full removal and replacement. As The Paving Lady notes, it also restores proper drainage, allowing the pavement to better withstand heavy rain and harsh conditions.
2. Existing pavement condition
How sealcoating and mill-and-pave compare depends on the state of your current pavement.
If your pavement is more than 20 years old or requires repairs on more than 30% of its surface, you may need to consider full replacement instead of either of these options.
3. Longevity and lifespan expectations
Sealcoating and mill-and-pave longevity is strong. Both options will renew the look of your pavement. According to The Paving Lady, a professionally applied sealcoating typically lasts between two and five years, depending on traffic wear, climate and other conditions. Cumulatively, technicians note it can more than double the life of your pavement, so consider it a recurring preventive maintenance task.
Many contractors find that mill-and-pave resurfacing may last 10 to 15 years if well maintained. It gives the surface a new lease of life, resetting the clock considerably. Compared to simple overlaying, this technique lasts longer and requires less maintenance.
4. Up-front cost vs. long-term value
To compare sealcoating and mill-and-pave on price, you have to differentiate between cost and value. Sealcoating is a low-cost, high-return investment. It typically costs between $0.80 and $1.50 per sq.-ft. of driveway or pavement. A mill-and-pave resurfacing will cost more than sealcoating yet considerably less than a full replacement.
Both options can increase the property’s curb appeal, so it’s a matter of whether you want to make a larger investment for longer-term peace of mind or a smaller one that you will need to periodically repeat. Approximately 35% of roads in the U.S. are unpaved, but there’s no need to damage your car on a potholed driveway or leave it looking unsightly when sealcoating or mill-and-pave will fix the problem.
5. The application process, downtime and timing
Sealcoating involves cleaning the surface, treating oil spots, filling minor cracks and then applying one or two coats of sealer. It must cure for 24 hours, so there can be no traffic during that time. Climate and season are also considerations for timing.
The Paving Lady recommends choosing a period when temperatures are likely to be at least 10 degrees Celsius throughout the curing period. Asphalt does not cure properly in the rain, so while you can never guarantee the weather, it makes sense to schedule this work for drier months.
Mill-and-pave involves heavy machinery to grind off the asphalt. A tack coat is applied, and then a paving machine lays the new asphalt, followed by compaction with rollers. The downtime is typically several days, depending on the project's size.
For property managers and HOAs, the required traffic control during that period may be a significant factor. The Paving Lady understands the need to manage resident expectations, budgets and timelines. It prioritizes clear communication and reliable schedules to ensure your project proceeds smoothly.
Frequently asked questions
Find answers to common questions about the sealcoating and mill-and-pave processes.
Q: How soon can you sealcoat a new driveway?
A: It’s best to wait six to 12 months before sealing a new asphalt surface. This allows the oils in the new asphalt to cure and harden, ensuring the sealant will bond properly.
Q: Is the old asphalt recycled during the mill-and-pave process?
A: Yes, in most cases. Milled asphalt is a valuable resource that is often recycled and used to produce new asphalt, reducing waste and conserving natural resources.
Q: Can you add an overlay without milling?
A: Paving directly on top of damaged asphalt traps existing problems. Cracks will quickly reflect through the new layer, and it can also create issues with drainage and curb height. Milling removes the damaged layer first, ensuring a stable foundation and longer-lasting repair.
Protecting your pavement investment
The choice between sealcoating and mill-and-pave depends on the pavement’s current condition and your long-term goals. Sealcoating is ideal for proactive maintenance and cumulative lifespan, while mill-and-pave is perfect for structural restoration and effectively offers a restart for your driveway.
Take time to compare sealcoating and mill-and-pave, because the right pavement strategy matters for both homeowners and property managers.