TYPES OF ASPHALT

BASE

A course surface with 2" stones in the mixture. Applied over stone Life expectancy is only 5-10 years before needing a top layer applied.

ID3

A slightly less coarse surface with a mixture of 2" and smaller stones sizing creating a variegated surface. Applied over stone. Life expectancy applied alone is 10-15 years before needing a top layer applied.

TOP

A fine finish with a smoother surface. Top can be applied only over a layer of asphalt such as base, ID3 or existing asphalt surface as an "overlay" (A new layer is applied over top of an existing layer of asphalt.) Life expectancy of a two layer "base and top" for a new driveway or overlay is 15-20 years before needing a new top layer applied.