Sometimes an asphalt pavement parking lot reaches a level of distress that requires more than the typical "pothole repair" or "skin patch" to remedy its issues. If your parking lot gets there, you’re probably a good candidate for a petromat overlay. A petromat overlay is a process of asphalt repair that saves you time and money by utilizing your existing damaged asphalt in conjunction with a standard overlay repair. The big difference between a standard overlay and a petromat overlay is the petromat fabric that is used in forming a barrier to water infiltration and absorbing stresses to reduce reflective and fatigue cracking of the asphalt overlay. A petromat overlay may be an affordable alternative to a complete asphalt removal and replacement.
Take a look below at this illustration that shows the layers of the petromat overlay system for a better understanding of how it works.