Why Resurface?
Asphalt resurfacing is a cost-effective way to extend the life of your pavement. Instead of an expensive "dig-out" and replacement, a thin layer (overlay) is applied to the top. This calculator uses standard industry formulas to ensure you order exactly what you need for a 1.5" or 2" cap.
The Overlay Formula
Overlay Tons = (Area × Thickness/12 × 145) ÷ 2000Contractors typically assume a coverage rate of approximately 110 lbs per square yard per inch of thickness.
Resurfacing Requirements
Milling
In areas where the new layer must meet an existing concrete edge or garage floor, "milling" or grinding down the old asphalt is required.
Structural Integrity
An overlay cannot fix a failed base. If the existing asphalt is severely "alligatored" (cracked like a turtle shell), resurfacing may not be recommended.
Frequently Asked Questions
What is asphalt resurfacing?+
Resurfacing (or overlaying) involves applying a new layer of hot-mix asphalt over an existing, structurally sound asphalt surface.
How thick should an asphalt overlay be?+
A typical residential or commercial resurfacing layer is 1.5 to 2 inches thick once compacted.
Does resurfacing require a tack coat?+
Yes. A tack coat (liquid asphalt) is essential to provide a bond between the old surface and the new overlay.
Can I resurface an asphalt driveway with cracks?+
Small cracks can be resurfaced, but large structural cracks or potholes must be repaired and filled before the overlay is applied to prevent 'reflective' cracking.
Related Asphalt Tools
Calculate required hot mix asphalt tonnage for any paving project.
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Asphalt Area CalculatorCalculate the total area of your paving project.
Asphalt Thickness CalculatorConvert asphalt thickness from inches to feet and meters.
Asphalt Density CalculatorConvert asphalt density between lb/ft³ and kg/m³.
Asphalt Driveway Cost CalculatorEstimate costs for a new asphalt driveway.
Asphalt Paving Cost CalculatorCalculate costs for commercial paving projects.
Asphalt Repair Cost CalculatorEstimate budget for asphalt patching and repairs.