When a commercial parking lot has worn out, two rehabilitation methods come up most often: mill-and-overlay and full depth reclamation. Choosing correctly comes down to one question — is the base still sound?
A mill-and-overlay grinds off the worn surface and paves a new one, and works when the base is still structurally sound. Full depth reclamation pulverizes and recompacts the asphalt and base together into a new foundation, and is needed when the base itself has failed.
In a mill-and-overlay, the distressed surface layer is ground off to a controlled depth, then a fresh asphalt surface is paved in its place. Milling keeps the finished grade correct at curbs, gutters, and building entrances.
This method restores a smooth, uniform surface efficiently — but only when the base beneath is still doing its job. It is a surface solution, not a structural one.
Full depth reclamation addresses a failed base. The existing asphalt and the underlying base are pulverized together into a uniform blended material, which is then regraded and recompacted into a new structural base. A fresh asphalt surface is paved on top.
Because it recycles the existing materials in place, reclamation rebuilds the lot's structure without the trucking and disposal cost of full excavation and replacement.
The deciding factor is the base. If the base is stable and the problems are confined to the surface, a mill-and-overlay is faster and less expensive. If the base has failed — shown by widespread alligator cracking, sunken areas, and recurring potholes — an overlay will simply crack again, and reclamation is the right investment.
A thorough assessment of the lot, including the base condition, should always come before choosing a method.
Reclamation generally costs more than a simple overlay because it rebuilds the base, but it costs far less than full excavate-and-replace and lasts when the base has failed.
Widespread alligator cracking, sunken areas, and potholes appearing across the lot point to base failure. A professional assessment confirms it.
Yes. Maisano Brothers Inc. provides milling, overlays, and full depth reclamation, and recommends the right method after assessing the lot.
A commercial parking lot is a significant investment and a working part of your business. Understanding how the paving process unfolds helps you plan, budget, and keep operations running.
Read guideSealcoating is the least expensive thing you can do to protect a parking lot, yet it is often overlooked until the surface is already deteriorating. A simple maintenance cycle extends pavement life dramatically.
Read guideFull depth reclamation pulverizes the existing asphalt and base together, then recompacts the blended material into a strong new base for fresh paving. It rebuilds badly failed Connecticut parking lots without the cost of hauling everything away.
Learn moreAsphalt milling grinds off a controlled depth of existing pavement so a new surface can be placed at the correct grade. Maisano Brothers Inc. mills Connecticut parking lots and roadways to prepare for overlays, fix drainage, and recycle the removed asphalt.
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