Asphalt Overlay

An overlay is appropriate when an existing asphalt surface needs 10 to 15 more years of life added to it. With proper care and maintenance, your asphalt paving project that All State Paving completes will have a 20 to 30 year lifespan.

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Parking Lot Repair
Asphalt Overlay Preparation

Our Process

 

Review of your Asphalt

Not every surface is perfect for an overlay application. We'll assess whether applying a new asphalt layer over your damaged surface is appropriate. If there are major potholes and cracks or water doesn't drain properly, your asphalt may need to be completely removed.

Milling The Surface

This process removes the top damaged layer of asphalt and provides a flat and strong base area for the new asphalt to bond to. Milling removes 1 to 3 inches of damaged (yet recyclable) surface area depending on how deep the damage has penetrated your asphalt. Any severely damaged areas will have the base repaired with new asphalt and aggregate.

Overlaying The Asphalt

With the base prepared, the new surface can be paved with around 2 inches of new asphalt.

Can An Asphalt Overlay Be Placed Over Concrete?

Concrete is a harder surface, so expansion joints are cut to control cracking of the asphalt. Over time, cracks will form along the joints and need to be filled. The benefit of controllable cracks is the prevention of an asphalt surface that completely fails. The Minnesota Department of Transportation has a great article available here that details when an overlay on concrete is appropriate.

Asphalt Overlay

4 Ways To Know If An Asphalt Overlay Is Best for Your Parking Lot

1. Lifetime
Overlays are meant to last 10-15 years. If you need a longer lifespan, we recommend removing and completely replacing your parking lot.

2. Size
Overlays are best for large parking lots. If you're considering this process for a smaller parking lot, the site prep costs may keep this from being a cost effective option.

3. Condition of Current Parking Lot
If the existing lot has signs of heavy wear and cracking, the strength of the overlay will be weakened. You can expect reflective cracking to occur on the new overlayed surface within a short period of time.

4. Parking Lot Depth
The asphalt overlay is placed on top of the existing parking lot; adding at least a couple inches in height to your lot. Your project will need to have room for this addition and still allow for proper drainage away from your structure.