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 expect a Northeast Ohio parking lot to last approximately 15 years with proper maintenance.
You should sealcoat your parking lot every 2 to 3 years based on traffic patterns.
We recommend that you sealcoat your lot the first year after installation. Regular maintenance such as crack sealing and line striping should be performed every 2-3 years. Also temps need to be at 50 degrees and rising. May through October.
Crack sealing should be performed as part of your regular asphalt maintenance program, every 2-3 years in Northeast, Ohio.
With over 50 Years of asphalt sealcoating and paving experience, trust your parking lot to the pros.