612-702-6490 . This is because porous asphalt enables water to drain through the pavement. Call for a free estimate on asphalt parking lot installation. Parking Lot Design 5-7 THICKNESS DESIGN FOR A heavy-duty traffic parking lot receives an average daily traffic flow of 3,000 to less than 24,000 vehicles per day. For the paint to last longer and bond better, we remove the dirt and debris hidden in the pavement. Parking lots that serve both passenger vehicles and trucks should have an asphalt thickness of at least four inches. Angle parking requires a minimum of a 16 foot aisle way. This information is necessary to know in order for your contractor to know the right thickness to set on your parking lot. Asphalt is cheaper than concrete to install, typically . Consistency, quality, and moisture conditions all play a factor in rating the substrate. However, the asphalt should be thicker -between six and eight inches- if it is a heavy-duty parking lot, depending on the base layer thickness. Disclosure: We may get commissions for purchases made through links in this post. This requires regular maintenance of your asphalt parking lot with crack filling and seal coating to prevent water intrusion that can cause even further damage over time. The minimum entrance radius is six feet six inches (66'- 6}. Asphalt is usually priced by square foot. . Traditionally, asphalt was laid by hand and the only time thickness can be easily checked and modified is before compression. For full-depth heavy-duty commercial lots, it is recommended to apply a layer about 7.5 thick of hot mix asphalt on the subgrade. A PG 52S-34 is intended for use where the average seven-day maximum pavement temperature is 52 degrees Celsius and the expected minimum temperature is -34 degrees Celsius, under standard traffic conditions. It also guarantees durability as a well-paved parking surface can last for up to 20 years. Asphalt cost per ton by material - chart. Continue to keep the lot clean and free of weeds. Heavier use parking lots will need 6 to 8 inches of asphalt. What is the difference between Type A and Type B asphalt? 50mm HL8 Base Course with a 50mm HL3 Surface Course or 60mm HL8 Base Course with a 40mm HL3 Surface Course - for heavy trafic areas of larger parking lots. To protect asphalt from the climate, homeowners should fill cracks annually and apply a protective sealant every 3-5 years costs range from $0.20 to $0.50 per square foot plus labor. Finally, our experts use the most suitable techniques to cautiously paint the pavement and renew it. We've been doing it for the last 40 years and look forward to the next! Here are the considerations that have to be made. As we discussed in our previous blog, there are three essential structural elements of pavement that we will review in our Asphalt Pavement Guide series; subgrade preparation, pavement thickness, and drainage. The thickness should be about two . Most residential projects are completed with a single layer of aspahlt, this is due to the cost/benefit relationship. Call 888-959-9637 today to speak with one of our trusted advisers. Life expectancy for a new driveway or parking lot is between 15-20 years with proper maintenance. CONSTRUCTION OF ASPHALT PARKING LOTS IN COLORADO 1st Edition January 2006 2nd Edition December 2016 . Copyright O'Brien Paving Inc. All rights reserved. Here are the general guidelines to help you understand the ideal pavement thickness for varying cases. If you are considering construction for a light-duty parking lot, the standard thickness for an asphalt layer is 2-3 inches, depending on the vehicle volume it will receive. A main part of asphalt installation is ensuring proper asphalt parking lot thickness and that your asphalt parking lot is installed properly. Call 303-467-0631 for a FREE estimate today. However, while this is a benefit for those who already have a concrete parking lot, there are some considerations to think of. Whereas, an average residential driveway likely wont need the same adjustments. Standard commercial lots should be made with an 8.0-inch dense aggregate base layer to provide a stable sub-base foundation. For the last 20 years, DC Construction Services has been providing businesses, commercial properties, and property management groups with safe, functional, solid workmanship. Asphalt Thickness: Residential -. That said, anything over three inches of . If you have property access that anticipates a lot of traffic, constructing a parking lot might be essential. Call for a free estimate on asphalt parking lot installation., . Commercial and residential paving - Part 2. For full-depth, light-duty parking lots, you should use 1.5 to 2 inches of compacted hot mix asphalt applied to the subgrade. It doesn't matter how great the base is, if the asphalt is laid at an insufficient thickness the parking lot likely won't last much longer than 10 years. Over the 15-20 year life of a blacktop driveway, repairs and maintenance cost $800-$1000 .. "/> A heavy-duty parking lot on a poor subgrade needs to be 10 to 12 inches thick. It helps keep your asphalt parking lot in its best possible shape. Heavy-duty Parking Lot A heavy-duty traffic parking lot receives an average daily traffic flow of 3,000 to less than 24,000 vehicles per day. For heavy duty traffic like, trucks, loading docks, or roadways . A good driveway starts with the ground (the subgrade), which must be smooth, firm, and evenly contoured. Part 2: Subgrade Preperation, Drainage and Pavement Thickness. As a result, the industry utilizes the technology and advancements to improve the quality of the pavement continuously. . Lighter use parking lots usually are a thickness of 4 inches. Parking lots need to have a 6-inch granular base aggregate while commercial driveways need to have 8 inches. Full-depth asphalt for a light-duty parking lot on an excellent subgrade should be a minimum of 4 inches thick. Complete service guarantees. Often, but not always, larger parking lots (greater than 10,000 sqft) are quoted post-compaction. As our area's leading asphalt company, we pride ourselves on delivering excellent work at a reasonable price, backed up by outstanding customer service. If you'd like to learn more about other paving solutions, we have a few articles that may interest you! After the soil and aggregate layers, 2+ layers of asphalt pavement are added (a minimum of 2.5 inches). For heavy-duty lots, the newer standard specifies four inches of asphalt over 12 inches of base vs. 6.5 inches of concrete applied directly over a compacted earth base. Most of Lakewood CO, on the other hand, requires 6 inches for their roadways. An excessively thick asphalt may not be compacted properly and over time, cracks and depressions will appear and deteriorate the paving. Are you curious about the thickness of asphalt your parking lot would need? The Asphalt Institute recommends a transverse slope of between 1.5 to 3.0% on all pavement surfaces, and an even steeper slope of 3 to 6% on shoulders. We will inspect your site and determine the ideal asphalt parking lot thickness to ensure your parking lot will last. Parking lots are paved areas intended for vehicle parking and can vary widely in size, function, and design. The parking lot is an important but often overlooked aspect of any property. However, 24-foot aisles are commonly used throughout. When these layers have been sufficiently compacted, the asphalt base layer and the surface layer are added to complete the pavement structure. Manuals. Proper drainage is the last essential element in making this determination, which we will discuss in our final piece of this series. Traffic Volume and Composition The cost per ton is $40 to $80 and per square foot is $0.75 to $2.00. Essentially if you don't need an upgraded license to drive the vehicle then 2 inches compacted of aspahlt will be enough for the driveway to last a very long time. It's harder to determine the load-bearing capacity of asphalt, so if that's a key consideration, concrete may be a better choice. A proper 2 inch compacted layer of aspahlt on a good base can easily last for 20+ years, we often see driveways we paved 30 years prior still in excellent shape. For full-depth, heavy-duty parking lots, he recommends 7.5 inches of hot mix asphalt on subgrade. General Considerations Asphalt Materials Thickness Design for Parking Lots Traffic Considerations Subgrade Considerations Construction Drainage Parking Stall . How Is Asphalt Priced? , and stay tuned for the final piece; drainage). When discussing these three elements we are going to speak in terms of residential asphalt pavement vs. commercial asphalt pavement in other words, your driveways vs. your parking lot. Soil Data These two factors, along with your anticipated traffic load, will ultimately determine just how thick your asphalt should be. For a heavy-duty parking lot with an aggregate base, it is recommended to install a 6 thick hot mix asphalt layer on a 3 aggregate base layer. Make sure that your parking lot space has an efficient layout that is easy to navigate for vehicles to enter and exit. The thickness of an overlay will usually range 1.5 to 2. An asphalt parking lot should last over 20 years - and proper maintenance and resurfacing increases the life span. In addition, the underlying soil can also influence the thickness of the asphalt parking lot. In this process, a machine is used to plane the pavement . MS-22 Construction of Hot Mix Asphalt Pavements. This sad truth requires some questions to be answered: How does thin asphalt happen? Busy parking lots, like the ones at supermarkets and big box stores are paved in the same way, with two "lifts." Residential driveways, on the other hand, are used only by small numbers of vehicles, traveling at slow speeds. This is one of the final steps in the parking lot paving process and indicates that the parking lot is nearing completion. . All rights reserved. Asphalt is a mixture of aggregates, binder and filler, used for constructing and maintaining roads, parking areas . Asphalt Parking Lot Construction Best Practices. [How to Stabilize Sand & Prevent Erosion], Does Dog Urine Stain Stone Pavers [How To Remove It], Is Stamped Asphalt Good For Driveways? Because you want your parking lot to be long-lasting, DC Construction Services considers all of these factors when determining asphalt thickness. The first binder layer of 1.5 would be a thicker stone. Heavier use parking lots will need 6 to 8 inches of asphalt. The first article provided an overview of the basics associated with these pavements. There is certainly a science to how thick an asphalt layer should be used for a project. Always remember to maintain the quality of your parking lot by consistently sealing cracks and other fissures. Finally, there will be a final asphalt layer of smaller stone, also 1.5 to 2.0 inches thick. Keep in mind though that solvent-based paints are a little bit pricier. There should be 2 inches of hot mix asphalt on 6.0 inches of aggregate base for light-duty lots. Holland Hurst Inc - Over 20,000 driveways paved. How thick should asphalt be parking lot? Asphalt curbing costs $3 to $6 per linear foot to install. It is important to consider all of these factors and get a quote before beginning construction. Call Us Today . We work with property managers to offer timely estimates and knowledgeable consultations. For heavy duty traffic like, trucks, loading docks, or roadways, we recommend a 2 binder layer. How Is Asphalt Priced? An asphalt parking lot requires the most frequent amount of ongoing maintenance when comparing to to other hard surface parking lots. Most of the time, subgrade material will be rock or soils, which needs to be carefully understood before designing pavement. For heavy-duty lots, there should be 3 inches of hot mix asphalt on 8.0 inches of aggregate base. Maintaining a slope of at least 1.5% on parking lots will ensure proper surface drainage (no ponding or birdbaths) and minimize infiltration, hydroplaning and the detrimental effects of water. Properly fill any cracks before seal coating your asphalt parking lot. When you buy through links on this page we may get a small commission. Since 2000, the American Association of State Highway and Transportation Officials . This 3/4" holds up to all construction traffic. Asphalt driveways need to be a minimum of 2" thick and are typically 3" (compacted). A. This means they allow stormwater and other liquids to pass right through them and . This technical graph and guidelines show the exact thickness needed . asphalt thickness and strength in parking lots Asphalt overlay is a good option to repair and restore an asphalt parking lot, road and driveways that is not too damaged and just needs a facelift. The right parking lot thickness generally depends on the type of traffic and soil. For heavy-duty lots, there should be 3 . All else being equal the big determining factor for longevity of the standard 2 inches of aspahlt is that heavy vehicles like garbage trucks, buses, or other 5+ ton vehicles are very rarely driven over or parked in the parking lot. An asphalt overlay will probably be between two and three inches. Once the thickness is known for each section of the parking lot, the . Commercial Drives and Parking Areas: 8" granular base aggregate with 4" asphalt for light use. A parking lot that gets light-duty traffic often gets less than 1,500 vehicles per day and primarily has passenger vehicles with less than 2% single-unit trucks. This is the third article in a series that provides information on long lasting asphalt pavements for commercial parking lots and driveways. In this section of the article, we'll outline tips forand best practices ofpaving overlays and thin lifts. Q. Our standard driveway is paved with MN/DOT spec wear course asphalt, compacted to a thickness of 2 1/2-3 with a vibratory roller. More often than not, other details for this construction will be glossed over by your contractor. Tampa, FL 33619, Copyright 2019 | Asphalt and Concrete Parking Lot Maintenance | All Rights Reserved | Site Map | Website design by P3-agency.com. Parking lots should have a driveway with at least 3-inches of asphalt and a 6-inch granular base . . Of course it never hurts to ask! If so, give DC Construction Services a call today. Most parking lots are built with a foundation of native substrate soils, which vary in thickness. ACPLM Inc. has been servicing the parking lot management, paving and concrete needs of Florida and the Greater Tampa Bay Area for many years. While this may be true, there are numerous parking lots that are paved with less than adequate asphalt thickness. Several factors go into that answer, so let's take a look at how we determine parking lot thickness, which begins by understanding the layers used to comprise asphalt. One of the things that some parking lots miss is good lighting. That being said, those numbers are averages. It also enhances storm water management and can improve the quality of groundwater. When considering the construction of a parking lot, it is important to know the daily amount of traffic and the number of cars that will be parking on it. One of the most important aspects of a successful asphalt paving project is the thickness of the asphalt itself. A conventional overlay is at least 1.5 inches thick, while a thin overlay is less than 1.5 inches thick. General Asphalt Paving . What is the Cost Difference Between Installed Concrete and Asphalt Parking Lots? Once the asphalt is in place, the surface will need to be compacted using vibratory rollers that can range from very small to very large, depending on the size of your parking lot. On top of that, a densely-graded aggregate, which provides load-carrying structure, is placed, usually around 4 to 6 inches deep. Most of the asphalt combinations that are commonly used for driveways and parking lots weigh 145 pounds per cubic foot of coverage.