There’s no single best asphalt grade—it all comes down to where and how it’s used. Highways and heavy-traffic roads need something tough, like polymer-modified asphalt (PMA) or Stone Matrix Asphalt (SMA). Local roads and parking lots rely on the Performance Graded (PG) system, chosen based on climate. A PG 64-28 mix, for example, handles a broad temperature range while simpler, more cost-effective mixes are typically enough for residential driveways. The best grade of asphalt depends on traffic, weather, and your budget, which is why a professional’s input is always a smart move before making a decision.

At a depth of two inches, a ton of asphalt covers around 80 to 100 square feet. However, the thicker the asphalt, the less surface area it will cover. That’s why measuring correctly is essential when estimating asphalt needs and costs to ensure you get enough material to cover your entire driveway, patio, or other asphalt surface.

New asphalt goes through two stages: drying and curing. Drying typically takes 24 to 72 hours, after which the surface is solid enough for light use like walking or careful driving. While you may be able to park on it after 72 hours, the surface is still soft and should be treated gently. Full curing is a much longer process, taking anywhere from 30 days to a full year for the asphalt to reach maximum strength. During this extended curing period, the asphalt is susceptible to damage from heavy vehicles, sharp objects, and high temperatures. Factors like weather, the specific asphalt mix, and application thickness all influence drying and curing times. For the most accurate timeline and to ensure the longevity of your new asphalt, it is always best to consult with your installation contractor for their specific recommendations.

Several materials are suitable for steep driveways. Gravel and crushed stone are affordable options that provide good traction. Permeable pavers—such as plastic, rubber, or concrete—filled with gravel or crushed stones are also excellent, as they allow water to drain without causing erosion and perform well in ice and snow. Another option is resin, which can be coated with an anti-slip finish and helps prevent puddles. For added stability, you can install a retaining wall to prevent pavers and gravel from shifting over time.