The Effects of Rain on Asphalt Parking Lots

The Effects of Rain on Asphalt Parking Lots

The Effects of Rain on Asphalt Parking Lots


Asphalt parking lots are a critical part of any commercial or industrial property. They provide an essential area for visitors, employees, and customers to park their cars and offer a first impression to any business. However, the weather can significantly impact the overall condition and lifespan of asphalt parking lots. One of the most common challenges here in Park Falls, WI, is the effect of rain on parking lot surfaces. In this blog, we'll be taking a closer look at the effects of rain on asphalt parking lots.


1. The formation of cracks and potholes

Rainwater is heavy and puts tremendous pressure on asphalt surfaces, causing cracks and potholes. Over time, water infiltrates the asphalt layers, which slowly erodes the sub-base and destabilizes the whole surface. This can lead to significant damages that require expensive repairs, so it's crucial to address the issue early on.

2. Compromised Structural Integrity

Asphalt parking lots that experience consistent and significant rainfall become more likely to experience structural damage over time. This is especially true if the asphalt material wasn't correctly installed and doesn't have proper drainage systems in place. When water is left to accumulate, it can weaken the asphalt's foundation, which will not only lead to more cracks but also make it easier for vehicles to break the surface.

3. Effect on Asphalt Binders

Asphalt binders are essential in providing the mixture that holds the pavement together. Rainwater can penetrate asphalt by attacking the binder, thereby breaking down the bonds that hold the aggregate in place. The result is a weakened surface that presents performance and safety risks, especially when exposed to heavy-duty use.

4. The Effect of Poor Drainage

As earlier mentioned, poor drainage can lead to significant damages on pavements over time. Aside from the formation of cracks and potholes, poor drainage can cause water to pool in parking lots, leading to slip and fall accidents, Skid resistance loss, and severe damage to roadbeds. Property owners must, therefore, invest in proper drainage systems that are designed to withstand heavy rainfall, preventing these issues from even arising.

5. Preventive Maintenance Measures

One way to prevent the effects of rain on asphalt parking lots is by investing in routine maintenance. Sealcoating, in particular, is an ideal solution for protecting the surface against the effects of rain, sunlight, and other environmental factors. The sealcoat acts as a barrier between the pavement and the elements, preserving the integrity of the surface, and extending its lifespan.



Rainfall can significantly impact the condition and lifespan of asphalt parking lots. The effects can range from structural damages, loss of skid resistance to poor drainage. By investing in routine maintenance services, implementing proper drainage systems, and investing in surface protection measures like sealcoating, property owners can protect their asphalt parking lots' structural integrity, reducing repair costs and ensuring that visitors, customers, and employees can access their businesses safely. Need help with sealcoating in Park Falls, WI? Feel free to contact the team at The Seal Guys today for all your sealcoating needs.

Save Money. Extend the life of your pavement.


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927 S 5th Ave, Park Falls, Wisconsin 54552

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