There are 3 necessary ingredients to building a great parking lot. It begins with a strong stone base, followed by a proper drainage plan. The final step is installing the appropriate amount asphalt. A typical car parking lot has 8" of stone base and 3 ½" of asphalt. For heavier traffic the minimums increase to 10" of stone and 4 ½" of asphalt. There must be greater than 1% slope throughout the whole parking lot to allow proper drainage.
When a parking lot reaches the end of its life cycle it must either be resurfaced or replaced. This can be determined by the amount of shattered and failed areas. If the lot has shifted, settled or rutted, there is likely a base problem which must be addressed.
Asphalt Resurfacing - Mill and Fill at 2” Thickness: 2" of the existing surface pavement is milled off, the lot is swept, a tack layer is placed and 2" of new asphalt surface is installed.
Parking Lot Replacement - 3 ½" Thickness: All of the existing asphalt is milled off, the existing stone base is graded and compacted, 3 ½" new asphalt is installed.