Get matched with top asphalt driveway pros in Dunbarton, NH

It takes recycled asphalt 48 hours to initially harden and up to 3 months to fully cure. It’s best to stay off of recycled asphalt for at least 48 hours, then you can walk or drive standard vehicles on it. Hold off on driving heavy trucks or equipment on it for at least 7 days. Allowing the surface to melt together and harden ensures that the surface stays durable and long-lasting. 

Instead of a set number of types, asphalt comes in variations designed for different needs. Some are categorized by temperature—hot mix, warm mix, and cold mix. Others are sorted by composition, like dense-graded, gap-graded (such as Stone Matrix Asphalt), porous, and mastic asphalt. There are also modified versions with added compounds like polymers, rubber, or emulsions. Instead of focusing on a number, it may be more useful to understand how contractors customize asphalt for durability, climate, and traffic conditions.

If you’re looking for a similar, eco-friendly driveway material, you might consider one of these options:

• Permeable pavement: This material is sometimes called “pervious” or “porous” pavement; it allows stormwater to drain into the subbase, eliminating storm drain costs. 

• Gravel: Consider paving your driveway with locally sourced gravel. By sourcing from a nearby source, your money won’t fund international shipping and will be invested back into your local community.

• Natural stone pavers: Because natural stone pavers are made from organically-produced stone, there’s no new manufacturing required, limiting the environmental impact. In addition, water easily flows and drains through the gaps in the pavers.

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.