As an asphalt surface ages it becomes brittle, making it more prone to cracking. Applying a regular sealcoat to an asphalt surface helps it maintain its elasticity, which is critical in preventing cracking.
According to the associates at Drivewaytips.com, asphalt surfaces are rated to last for anywhere between 10 and 30 years. Applying a proper sealant increases the likelihood of an asphalt surface lasting 30 years or more.
Five-gallon buckets of asphalt sealant can be purchased for anywhere between $5 and $30. A typical 5-gallon bucket of sealant covers around 400 square feet of surface.
Sealants can be applied professionally or by the do-it-yourself handyman. It is recommended that a sealcoat be applied to an asphalt surface immediately after it is paved. After the initial application, a sealcoat should be applied to an asphalt surface every 2 to 3 years.
Sealcoating asphalt surfaces does much more than extend its life and prevent cracking. According to Naturalhandyman.com, sealcoating helps prevent damage from ultraviolet light and also helps prevent water and ice from seeping into the surface of the asphalt causing it to crumble.