This is probably the most debated topic about sealing your driveway. Well, there are several reasons why roads and highways do not get sealed. First, the high volume of traffic will rapidly wear away the sealed surface, so essentially, we would be throwing away money. Second, roadways are built differently then your home driveway or parking lot. Engineers and government officials plan on re-paving after a given period of time, homeowners don’t normally plan for this. Third, UV rays will damage the surface of the asphalt, causing it to become brittle. With heavy traffic, this brittle surface will wear away and expose fresh new asphalt. Oil drippings from cars and trucks can even help in acting as a low-grade sealer. Typically, driveways don’t receive the same traffic so we must seal them to preserve the asphalt.