The benefits of sealcoating your aspalt driveway are numerous. Basically sealcoating is a form of preventive maintenance performed on your parking lot, areas, or driveways. It is very similar to painting your residence or buildings, you are putting on a layer of additional protection from the elements to protect your investments and keep them from deteriorating.
When you have sealcoating applied it seals the small and tiny cracks that are developing and prevents water from penetrating into the sub layers of the asphalt paving materials. Also the dark appearance, often shiny, improves the overall appearance of any new or old asphalt.
Exposure to the suns rays is harmful over time to asphalt and sealcoating can help protect your driveway from these harmful rays, as well as prevent some of the harmful effects of spilling chemicals and gasoline on the asphalt, which happens all to often in spite of being careful while working in the garage.
Sealcoating leaves a smooth, clean surface ideal for sweeping, which lowers cleaning costs and for a driveway and gives your entrance a fresh and new look, similar to painting your home or business. Sealcoating fills surface voids, which reduces exposure to oxygen and UV rays and reduces the depth to which oil or gas can penetrate the asphalt. It acts as a waterproofing agent, minimizing the rate at which water enters the asphalt of your driveway or parking lot.
It also acts as a waterproofing agent helping to minimize the absorption rate of water as it lays upon the asphalt and helps to prevent seepage thereof from this rain and snow, thereby preventing the damage that occurs during thaw cycles when it gets warm, then suddenly freezes again, allowing water again to penetrate which again leads to cracks and more repairs and more money out of your pocket.
Just an ounce of preventive maintenance can reward you with savings of replacement costs. Sealcoating costs pennies per square foot compared to the dollars needed to repair or replace damaged asphalt. The intrusion of moisture into asphalt not only accelerates its deterioration, but it allows for cracks to expand, potholes to weaken around the edges and expand even more.