Asphalt Resurfacing Cost Calculator

A properly installed asphalt overlay typically lasts 7-10 years for standard applications. Premium overlays with thicker asphalt can last 10-15 years with proper maintenance. Factors affecting longevity include climate conditions, traffic volume, initial installation quality, and maintenance practices. Regular sealcoating every 2-3 years can significantly extend the life of your resurfaced asphalt.

The minimum recommended thickness for an asphalt overlay is 1 inch (2.5 cm), but this is only suitable for very minor repairs on surfaces with minimal damage. For residential driveways, a 1.5-2 inch (3.8-5 cm) overlay is standard. Commercial parking lots typically require 2-3 inches (5-7.5 cm) to withstand heavier traffic. Thinner overlays may be less expensive initially but will not last as long and may develop problems sooner.

Asphalt resurfacing is not recommended when temperatures are below 50°F (10°C). Cold weather prevents proper compaction and bonding of the new asphalt layer, leading to premature failure. The ideal temperature range for asphalt installation is 70-90°F (21-32°C). In most regions, asphalt season runs from late spring through early fall. If you must resurface in cooler weather, special mix designs and techniques may be used, but these typically increase costs and may not provide optimal results.

While not always mandatory, milling (grinding down the existing surface) is highly recommended for most resurfacing projects. Milling provides several benefits: it maintains proper drainage by preventing elevation changes, creates a rough surface for better bonding, removes damaged top layers, and prevents the buildup of excessive asphalt thickness over time. For driveways with curbs or garage transitions, milling helps maintain proper clearances. While it adds $0.75-1.25 per square foot to the project cost, it significantly improves the quality and longevity of the resurfacing job.

You can typically drive on a newly resurfaced asphalt driveway after 24-48 hours, depending on temperature and humidity conditions. During hot weather, asphalt cures faster, sometimes allowing light vehicle use after just 24 hours. However, it's best to avoid heavy vehicles, turning your wheels while stationary, or parking in the same spot for at least 7 days. Complete curing takes about 30 days, so use caution during this period. Your contractor should provide specific guidelines based on your local climate and the asphalt mix used.