Asphalt overlays are a long-term, cost-effective maintenance solution. If you notice grade depressions (standing water on the pavement) and/or large sections of alligatored areas (interconnecting cracks forming a series of blocks resembling an alligator’s skin), it's time to have your pavement resurfaced. This new layer will add years to your parking lot, driveway or road surface without the cost of removal and replacement.
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As asphalt ages it can become worn past the option of applying a seal coat, but not to the point of needing to be replaced. A perfect, cost-effective solution is to resurface the asphalt pavement with an overlay. An asphalt overlay is the process of installing 1 ½" - 2" of new asphalt on top of the existing surface.
If excessive cracking is present, the existing asphalt can be milled. Milling is taking down the surface to a lower level to minimize the depths of the cracks before the overlay is installed. This process can also be done if there is a space restriction with adding a new layer.
After any necessary milling, the entire surface receives a uniform hot tack oil bonding coat. This primer material will help adhere the new asphalt layer to the existing surface.
Next, the new asphalt is installed with an asphalt paver providing an even, uniform layer. While paving, the new layer is compressed with a roller until there is a smooth finish. Once cured, the area can be painted with parking stripes, handicap spaces, crosswalks and speed bumps if required.
