An overlay is generally 2 inches of new asphalt paved over the existing asphalt. Typically, a ½ inch scratch leveling course is paved, as necessary, to level out the parking lot and then a 1 ½ inch surface course is paved over the scratch leveling course.
When deciding to overlay in lieu of grinding the parking lot, Surface Engineering will consider the following:
Grinding or Milling Existing pavement down, generally 2-4 inches, is an another resurfacing option. Grinding a parking lot before paving new asphalt eliminates reflective cracking and allows for the entire parking lot to be leveled before the surface course of asphalt is paved.
Grinding a parking lot offers an opportunity to inspect the aggregate base and re-grade if necessary. When grinding, it’s important to analyze existing drainage and install new drainage where necessary.
When deciding to grind in lieu of overlaying a parking lot, Surface Engineering will consider the following:
You should sealcoat your parking lot every 2 to 3 years based on traffic patterns.
With proper maintenance, asphalt pavement can last 15–25 years. Regular sealcoating and timely repairs can extend its lifespan.
Most commercial parking lots should be sealcoated every 2–3 years to protect against weather damage and wear.
Yes. We provide professional striping services, including ADA-compliant handicap spaces, fire lanes, and custom markings.
