How Should You Pave Your Commercial Building’s Parking Lot?

Parking lots are an essential part of most commercial buildings. Whether it's for your employees or for your customers, having a parking lot can be instrumental in helping your business operate more smoothly. However, it's not enough to just have a parking lot, your parking lot must have certain qualities if it's to serve you as well as you expect.

How a parking lot is paved is one of the most important determinants of how well it will serve you. There are several things to consider for you to get desirable results.

Proper Structural Design

There is no one-size-fits-all design when paving. Factors such as the thickness of the pavement are calculated based on the expected capacity of the parking lot, the conditions of the subgrade, etc. Without a proper design, you have no way of telling if the parking lot will be able to handle the weight of delivery trucks stopping by every day.

For proper design, it is important to work with an experienced paving contractor. They can analyze the situation faster and advise you on what is needed. Contact an asphalt paving company like Phend & Brown for more information.

Subgrade Preparation

The subgrade is what gives the pavement the strength it requires to support loads. It serves as the foundation of the pavement, and therefore, it must be properly prepared to support the weight of the loads above.

Proper preparation of the subgrade means removal of any vegetation and topsoil, proper shaping, and proper compaction. Care must be taken to remove any soft spots as these can lead to the sinking of the paved area in the future. These soft spots need to be removed and replaced with good soil or compacted aggregate.

Proper Drainage

Few forces can cause as much damage to your parking lot compared to water. If water finds its way into the subgrade, it can cause the silt and/or clay to lose strength. This can create new soft spots in the subgrade, resulting in the loss of structural integrity. If the water in the subgrade freezes during winter, it can also cause frost heave.

When designing and paving an asphalt parking lot, proper drainage of water must be factored in. This means that you should consider the drainage of water that is both above and below the asphalt. This is why pavements should have a sloped shape, to help direct the water into drainage channels. To help with drainage of the subgrade layers, drain-tail piping can be used.


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