Another major factor in the deterioration of asphalt is the damage caused by manmade elements such as fuel, salts, antifreeze and oil that break down the oils and cohesive properties in the asphalt. These elements will dissolve into the asphalt causing it to soften and weaken. This can be seen in oil spots and gas spills.
The Asphalt Institute has done a number of studies and estimates regarding sealcoating asphalt. They estimate the cost of an unmaintained surface asphalt parking lot over a 15 year period is $39.07 per square yard. If sealcoating is performed every three years the cost is $23.84 per square yard. Looking at the numbers, if you had a 1000 square yard parking lot or driveway the savings over 15 years would be $15,230. Sealcoating gives the impression that you care about your property and keep it well maintained.
ASPHALT EMULSION SEALERS
MasterSeal – Asphalt and Blacktop Sealcoating