Potholes are more than just an inconvenience they are a sign of serious asphalt damage that can lead to costly repairs, vehicle damage, and safety hazards. While potholes may seem to appear overnight, they actually form over time due to environmental stress and lack of proper pavement maintenance. Andersen Asphalt & Striping would like to cover how potholes form and how sealcoating helps prevent them which can save property owners thousands of dollars in long-term asphalt repairs.
How Potholes Form
Potholes develop when asphalt pavement is weakened from the inside out. Here is a step-by-step look at the process on how potholes are formed:
Cracks Begin to Form: Asphalt naturally expands and contracts with temperature changes. Over time, UV exposure, traffic wear, and oxidation cause the surface to dry out and crack.
Water Penetrates the Pavement: Once cracks appear, rainwater and the occasional melting snow will seep beneath the surface. This moisture weakens the asphalt binder and the base layer below.
Freeze-Thaw Cycles Cause Expansion: In colder climates, trapped water freezes and expands. When it thaws, it leaves behind larger voids under the pavement. Repeated freeze-thaw cycles worsen the damage.
Traffic Breaks the Surface: As vehicles drive over weakened areas, the unsupported asphalt collapses, breaking apart and creating a pothole.
Why Potholes Are a Serious Problem
Potholes can damage vehicles and tires, create trip hazards for pedestrians, allow even more water infiltration and lead to rapid pavement failure if not repaired. Once potholes form, they require patching or resurfacing, which is far more expensive than preventative maintenance.
How Sealcoating Helps Prevent Potholes
Sealcoating is one of the most effective ways to stop potholes before they start. It acts as a protective barrier that shields asphalt from its biggest threats.
Blocks Water Penetration: Sealcoating seals small surface pores and hairline cracks, preventing water from entering the pavement and weakening the base.
Protects Against UV Damage: UV rays dry out asphalt and make it brittle. Sealcoating slows oxidation and preserves flexibility, reducing cracking.
Strengthens the Surface Layer: Sealcoating reinforces the asphalt surface, helping it withstand traffic stress and reducing surface breakdown.
Prevents Crack Expansion: When combined with crack sealing, sealcoating stops small cracks from turning into major structural failures that lead to potholes.
How Often Should Sealcoating Be Applied
When it comes to maintaining asphalt, it is important to know when to have your asphalt sealcoated. New asphalt should be sealcoated after 6 to 12 months. Existing asphalt should be reapplied every 2 to 3 years and for high-traffic areas you may need more frequent applications. Regular maintenance dramatically reduces the risk of pothole formation. Fixing potholes after they appear is costly and disruptive. Sealcoating is a low-cost preventative solution that protects your pavement, extends its lifespan, and reduces the need for major repairs.
Asphalt Parking Lot & Road Pavement Resurfacing, Replacement & More in Reno, Elko, Henderson, North LV, Paradise, Spring Valley, Sunrise Manor, Las Vegas, NV | State of Nevada
Do not wait until potholes damage your pavement or vehicles. Contact Andersen Asphalt & Striping today to schedule professional sealcoating services and keep your asphalt smooth, safe, and durable for years to come.
