With an asphalt surface, there are a few pavement maintenance options.
SEALCOATING
This service is for pavement that is in good shape, free of broken areas or excessive damage. It is a liquid that is applied over the existing surface to protect and preserve the asphalt. This maintenance is generally performed every 1-3 years. With this service, there is an option to fill and seal major cracks.
ASPHALT REPAIR
Most asphalt repairs are done with hot mix asphalt. This is a temporary solution to repair localized areas of the asphalt surface without repaving the entire area. There will be a patch like appearance after the work is performed. Asphalt patches can be done either in the form of skin patching, or an area can be removed and replaced. Depending on the severity of the area, this repair usually lasts between 1-5 years. In a situation where there is a very minor repair, cold patch may be used as a more economical solution. This type of repair usually does not last more than a few months to a year, as there are no adhesive properties to cold patch.
RESURFACING
With asphalt, there is an option to go over the existing surface with a 1.5" to 2" overlay. This is more affordable than removing the entire driveway, and it will result in the same appearance. An adhesive is applied to the existing surface before the asphalt is laid in order to bind the old and new surfaces together. Some areas may need to be removed for proper drainage or to level the surface with an existing sidewalk or garage floor. Any cracks that were on the initial pavement will reflect through anywhere from 1-3 years later. This option will generally last 8-10 years.
REMOVAL & REPLACEMENT
When the entire asphalt surface is removed, then the base can be examined and corrected if necessary. Any surface is only as good as its underlying base. Additional stone may be required in order to build up the base to a sufficient level. The area is replaced with 3" to 4" of asphalt, and this option generally lasts 10-15 years.