How To Protect A New Asphalt Parking Lot From Water Damage

June 24, 2024

Installing a new asphalt parking lot is a significant investment in your property’s infrastructure. To ensure its longevity and minimize maintenance costs, protecting it from water damage is crucial. Water is one of the primary elements that can compromise the integrity of asphalt, leading to cracks, potholes, and overall deterioration. In this blog, we’ll explore effective strategies to safeguard your new asphalt parking lot from water damage.

Understanding the Impact of Water Damage on Asphalt

Asphalt is a durable material, but it is susceptible to damage from water infiltration. Here’s how water can affect your parking lot:

  • Pooling and Standing Water: When water accumulates on the surface due to poor drainage, it can weaken the asphalt binder and cause it to break down over time.
  • Erosion: Water can wash away the fines (small particles) within the asphalt mix, leading to surface deterioration and the formation of cracks and potholes.
  • Freeze-Thaw Cycle: In colder climates, water that seeps into cracks and pores of the asphalt can freeze and expand, further damaging the pavement.

Strategies to Protect Your Asphalt Parking Lot

1. Proper Drainage Design

A well-designed drainage system is essential to prevent water from pooling on the surface of your parking lot. Here are key aspects to consider:

  • Surface Grading: Ensure the parking lot is sloped adequately to facilitate water runoff towards designated drains or collection points.
  • Stormwater Management: Install catch basins, gutters, and downspouts to direct water away from the asphalt surface and into a proper drainage system.
  • Permeable Pavement: Consider using permeable asphalt or incorporating permeable pavers in areas where water runoff is a concern. These materials allow water to infiltrate into the ground rather than pooling on the surface.

2. Regular Maintenance

Proactive maintenance is essential to identify and address potential water damage early. Regularly inspect your parking lot for the following:

  • Cracks and Potholes: Promptly repair any cracks or potholes to prevent water from infiltrating deeper into the asphalt layers.
  • Sealcoating: Apply a protective sealcoat every few years to protect the asphalt surface from water penetration, UV rays, and other elements.
  • Clean Drains: Ensure that catch basins and drains are clear of debris to maintain proper water flow.

3. Quality Construction Materials

Using high-quality materials during the initial construction of your parking lot can significantly impact its durability and resistance to water damage. Choose asphalt mixes that are designed for your specific climate and traffic conditions.

4. Avoid Heavy Loads and Traffic During Rain

During and immediately after rain, heavy loads and excessive traffic can exacerbate water damage. Avoid allowing heavy trucks or machinery to drive over the parking lot when it is wet, as this can cause rutting and further compromise the asphalt surface.

5. Educate Users

Educate employees, tenants, and visitors about the importance of maintaining the parking lot’s integrity. Encourage them to report any drainage issues, standing water, or damage promptly so that repairs can be made in a timely manner.


Protecting your new asphalt parking lot from water damage requires proactive planning, quality construction, and regular maintenance. By implementing proper drainage systems, conducting regular inspections, using quality materials, and educating users, you can extend the lifespan of your parking lot and minimize costly repairs. Remember, investing in the protection of your asphalt parking lot now can save you time and money in the future. If you’re unsure about the best strategies for your specific parking lot, consult with a professional asphalt contractor who can provide expert advice tailored to your needs. With these measures in place, you can ensure that your asphalt parking lot remains in top condition for years to come.

Need a Paving Contractor in Nokesville, VA?

With over 50 years of experience in the design and construction of commercial and residential asphalt paving, Paveco Inc. has the experience and manpower to make your project the best it can be. We use only the highest quality of materials available. Paveco Inc. utilizes the latest technology and equipment available. We have established high standards in Northern and Central Virginia, with attention to quality and detail at an affordable cost to our customers. No matter what size the job is, large or small, we do it all. Contact us today to entrust your next project to Paveco Inc, and see what we can do for you.

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