Are you planning on installing a new driveway at your residential property? If yes, it is important to consider the different types of asphalt pavements. Regular asphalt driveways and porous pavements are the two main types available today. Regular asphalt paving installations have worked very well for very long. However, porous pavements provide many great benefits and some minor disadvantages.
If you are considering a porous asphalt driveway for your home, knowing this type of pavement is very important. At the core, porous asphalt pavements allow rainwater and melting snow water to run directly into the ground below. Hence, porous driveways keep the water away from entering local channels while keeping the earth fertile. Here’s what you need to know in detail:
Pros of Porous Asphalt Driveways
Better Stormwater Management
Porous asphalt driveways can manage stormwater much more efficiently than regular asphalt pavements. Traditional asphalt surfaces will contribute to stormwater runoff. Conversely, porous asphalt allows rainwater to seep through the pavement and into the soil below. So, this way, stormwater landing on the driveway surface will not enter the local water runoffs. Also, this makes porous asphalt pavements much better to control flooding in areas where it rains a lot.
Reduced Heat Island Effect
Porous asphalt has higher reflectivity than traditional asphalt. This is due to its lighter color finish, resulting in lower surface temperatures. So, with this reduced heat island effect, these types of driveways are particularly useful in hotter climates. They will keep the surrounding temperature slightly lower by reducing heat absorption. Also, this helps porous driveways to reduce urban heat effects and improve overall thermal comfort. Investing in porous driveways in hotter climates is a better option.
Improved Water Quality and Eco-Friendliness
Porous driveways work on a principle where the rainwater runs directly down to the soil underneath. However, during the process, the water gets filtered naturally. This natural filtration process improves water quality. Also, the filtered water will protect nearby water bodies from pollution. So, this way, porous driveways are eco-friendlier than regular asphalt driveways. Also, they will keep the ground below more fertile further contributing to the eco-friendly effects.
Porous Driveways Are More Durable and Long-Lasting
Contrary to popular belief, porous asphalt driveways are durable and long-lasting. When properly installed and maintained, they will last longer than regular asphalt pavements. Also, porous driveways handle heavy loads more efficiently. These can provide reliable performance for many years with regular maintenance. Periodic cleaning and resealing are some of the most important maintenance works required to last these driveways much longer.
Reduced Need for Drainage Infrastructure
Water drainage systems are the primary requirement for regular asphalt pavements and driveways. Also, additional costs and regular drainage maintenance are required to keep these in good condition. However, with porous driveways, you do not need to worry about installing and maintaining water drainage systems. These driveways will let water run down into the ground naturally. Hence, homeowners can save costs and maintenance work going forward.
Cons of Porous Asphalt Driveways
Initial Cost Can be Higher
The initial installation costs can be a major drawback associated with porous driveways. These driveways need specialized materials and construction techniques that will have additional costs and work requirements. However, the initial higher costs are justified with the lower maintenance requirements. Also, consider the drainage benefit homeowners will get. So, you can argue that the overall costing of a porous driveway turns out to be a benefit in the long run.
Maintenance Requirements
Porous driveways will require regular maintenance for them to operate perfectly. To maintain the permeable features, homeowners need to clean porous driveways more often. Also, after a heavy storm, a pressure wash will be required to remove the debris and clear the small pores allowing water to filter through. Failure to properly maintain the driveway can result in reduced infiltration capacity and potential drainage issues.
Higher Potential for Clogging
Natural factors like sediment and elements can clog up the small pores in the surface of a porous driveway. This can compromise the pavement’s ability to filter water effectively and lead to drainage problems. So, maintenance and cleaning are the keys to longer-lasting porous driveways. However, if you have a pressure washer and do not mind cleaning the driveway regularly, it will maintain a decent look for much longer.
Limited Design Options
Compared to regular asphalt pavements, porous driveways will offer limited design options. Also, the coarse texture and uniform finish do not appeal to all homeowners. Additionally, porous driveways might not be too supportive of landscaping and other driveway finishes. However, technological advancements have led to the development of colored and textured porous asphalt options. So, these offer greater design flexibility while maintaining the porous nature.
Cold Climate Considerations
Frequent freeze-thaw cycles in colder climates may cause porous asphalt driveways to experience performance issues. These are largely due to the potential for ice formation. Proper installation techniques and hiring professional asphalt driveway companies are the keys to success. Also, a porous driveway should get adequate base preparation and drainage considerations. When installed right, these types of driveways will last a long time in all climates.
And Finally
Porous asphalt driveways provide many advantages. However, it is important to consider the limitations as well. With the right installation, porous driveways should last in addition to two decades. Proper maintenance is key to lasting these driveways long. The initial expensive installation proves worthwhile with lowered maintenance expenses and natural filtration of water without the need to maintain drainage. These are perfect driveway options for modern homes and residential properties.
