Statewide Asphalt

Crack Sealing

Crack Sealing the Parking Lot

Whether performed alone or as part of a more comprehensive pavement maintenance service, crack sealing is vital to the longevity of the asphalt surface. When left unattended, the cracks will allow water to penetrate to the base course, and eventually the subgrade.

This moisture will weaken the underlying structure, and the pavement on the top will not be sufficiently strong to handle the weight of passing vehicles, therefore it will fail.

In order to crack seal properly, the open joints or cracks must be cleaned with compressed air or a vacuum system to remove loose dirt and debris. Then the crack seal material is heated to around 400 degrees and applied via squeegee into the cracks, forming a watertight seal.

The best time of year to perform this work is actually in the winter, when the pavement contracts, and the cracks are open during most of the season, thereby allowing the material to penetrate deeper into the cracks.