Weather and settling will cause minor cracks in your asphalt. This is an expected result of an item designed to be outdoors and is not a defect in construction. As asphalt is a petroleum product, it can be dissolved with petroleum or other solvents. Take care not to spill such products on your asphalt. If this should inadvertently occur, then wash immediately with water and mild soap. During extreme heat, it is recommended that you do not leave a vehicle parked for extended periods, as this can cause lumps in the surface of your asphalt. The asphalt is designed for regular use of single family vehicles. It is not designed for traffic of heavy equipment, busses, semi-trucks, or other machinery. Traffic from vehicles such as this can break down the asphalt and crack the edges.  This damage is not covered under warranty.