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Category Archive for: ‘Asphalt Facts’

As leaders in the St. Louis asphalt community, we believe it is imperative that we continue to bring forth new and innovative solutions to the pavement industry. One solution we’ve pushed forward involves runoff on paved surfaces. Runoff has always been a challenge for many property owners and facility managers, but it doesn’t have to be


Porous asphalt, an application used mainly in parking lots, is made up of stone, asphalt, and gravel that are combined to create a permeable surface. While this technique has existed since the 1970s, it was slow to take off due to many poor installations.


At Leritz & Busy Bee, our teams of professionals have been installing porous asphalt for a number of years, and let us tell you, there are a multitude of benefits.

  • Less runoff: As you know, the porous surface is pervious in nature and can infiltrate up to 80% of annual runoff when installed properly. So how can this benefit you monetarily, you ask? Well, because your annual runoff will be drastically reduced, the need for a large detention basin will as well. These storm basins are not only expensive, but require a large piece of land to build.
  • Longevity: Research shows that even after 20 years, porous paved surfaces show little to no cracking or splitting. We have noticed that the asphalt wears well and drains effectively for several years. Even though 20 years seems to be the average lifespan, it is not uncommon to see a porous surface last over 30 years. It’s all contingent upon the initial installation and whether or not the surface was properly maintained.
  • Environmental: Porous asphalt offers up a variety of environmental benefits including reduction of storm system basins and cooler asphalt temperatures. As we mentioned, 80% of runoff after a rain storm will pass through the asphalt, thus reducing the need for storm basins. Also, because porous requires less energy to manufacture it will significantly reduce emissions, odor and smoke.
  • Cost-Efficient: The overall lifetime cost of a paving project is greatly reduced when choosing porous asphalt. Not only will it last you at least 20 years, it will not require the need for a large storm basin. In some cases, the basin can be eliminated all together, thus saving you money and giving you more space.



For 30 years, the folks at Leritz & Busy Bee have been supplying the St. Louis area with innovative paving methods. If you have any questions regarding our asphalt solutions, please feel free to reach out! Remember: for all your commercial and residential paving needs, think Lertiz & Busy Bee!

In a previous blog entry, we explored an array of benefits that porous asphalt could bring to your next paving project. While we touched briefly on many of the benefits, we didn’t dive into examples of when porous could be put to proper use.


For many facility managers, controlling the runoff after a heavy rain can be a very trying task. The addition of porous asphalt to your storm management system will not only reduce your annual runoff by 88 percent, but will help eliminate those annoying puddles in the parking lot.


The way it works is quite simple. Once the old asphalt is removed, a series of perforated pipes are incorporated within an open-grated crushed limestone base in an effort to route the runoff to the closest storm drain. After construction of the base and piping, it is time to lay the asphalt. Because porous asphalt is permeable in nature, it allows the water to drain through the surface, down into the storm water management system. Porous asphalt will significantly reduce those pesky water puddles and extend the life of your asphalt. Unfortunately, porous asphalt is not designed for patching small areas.


For almost 30 years, the folks at Leritz & Busy Bee have been supplying the St. Louis area with innovative paving methods. Porous paving projects can be viewed on our website under our projects tab in the gallery. If you have any questions regarding our asphalt solutions, please feel free to reach out! Remember: for all your commercial and residential paving needs, think Lertiz & Busy Bee!

With everyone battening down the hatches in preparation for fall weather; we thought it would be appropriate to explore one of the many effects from torrential rainfall: hydrostatic water pressure. Hydrostatic water pressure is most common in basements, but its wrath can be seen all over… including your parking lot!


One of the biggest destroyers of asphalt is moisture. When moisture accumulates below the surface it compromises the strength of the stone base and softens the underlying soils. The simplest, most efficient way to solve this problem is with the addition of under-drains – commonly referred to French drains in the industry. How does it work, you ask? Let us explain…


Once the old asphalt is removed we dig a trench, usually to a depth of 24”, and install fabric-wrapped perforated pipe. The trench is then filled with open-grated stone. This allows the ground water to find its way to the pipe and out from beneath the pavement. Finally, the asphalt surface if replaced. Depending on the location of the French drain, porous asphalt may be installed to eliminate water ponding issues as well.


French drains can—if properly installed—extend the overall lifespan of your asphalt.


If you would like to know more about French drains and how they can benefit your next paving project, please feel free to drop us a line today. Remember: for all your commercial and residential paving needs, think Lertiz & Busy Bee!

At Leritz & Busy Bee, we provide specialized asphalt solutions to the commercial industry. Our paving process is prompt and cost-efficient, thus saving you time and money. How have we been able to do this, you ask? Two words: surface prep.

Once you have chosen an asphalt application it is time to begin phase one of the pre-pavement process: surface preparation. If the area is new, it is important that we dig a space deep enough to accommodate not only the asphalt, but the gravel base as well.

Speaking of the gravel base, it is vital that your base is the proper thickness. Asphalt gains strength from the rock base beneath. Determining the proper rock thickness will give your area a solid foundation and increase the overall lifespan of your pavement. A minimum of 6” of rock is recommended; however increasing your rock base will only make your pavement more durable. Also, it is very important that we compact the rock before we begin paving. Proper compaction equipment is essential, which will help prevent early settling and cracking of your pavement.

Also, please be vigilant in ensuring your contractor is applying a gravel base. Many “fly by night” contractors will try to cut corners in effort to save money, but a gravel base can simply not be forgotten.

For almost 30 years, the folks at Leritz & Busy Bee have been supplying the St. Louis area with innovative paving methods. If you have any questions regarding our asphalt solutions, please feel free to reach out. Remember: for all your commercial and residential paving needs, think Lertiz & Busy Bee!

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