Prevents Reflective Cracking:
While there are times when it makes sense to install another layer of asphalt over an existing layer, a process known as overlaying or resurfacing, generally pulverizing and repaving makes more sense. Why? When you overlay you are, in time, inviting the cracks in the older layer of asphalt to come through or reflect through the newly installed layer — a process known as reflective cracking. Whereas, with pulverization you are starting from scratch. The propensity for cracking is much less.