Extending a driveway can increase your home’s functionality and curb appeal. Whether you need extra parking space or want to create a dedicated area for repairs, an asphalt driveway extension is an excellent solution.
In this guide and accompanying video, This Old House expert mason, Mark McCullough, will show you how to add an asphalt parking spot to an existing driveway, providing valuable insights for those considering a similar project.
Planning Your Driveway Extension
Careful planning is essential before breaking ground on your driveway extension. This stage involves several crucial steps to ensure a smooth and successful project.
Obtaining Necessary Permissions
In many municipalities, the sidewalk and even part of your yard may belong to the town. Adding a parking space that affects town property requires permission. Check with your local authorities to determine if you need a permit for your driveway extension project. While this process is usually straightforward, it’s an essential step to avoid potential legal issues down the line.
Choosing the Right Material
When extending your driveway, select a material that complements your existing surface and meets your needs.
Asphalt is a popular choice for the following reasons:
- Cost-effectiveness
- Creates cohesion with existing asphalt driveways
- Durability and longevity
- Ease of maintenance
However, depending on your preferences and budget, other materials, such as concrete, gravel, or pavers, can also be suitable. Each material has its benefits and drawbacks, so weigh your options carefully before making a decision.
Hiring a Professional Contractor
While some home improvement projects are suitable for DIY enthusiasts, extending a driveway with asphalt requires specialized equipment and expertise.
We recommend hiring a professional asphalt contractor to extend your driveway because they come with the following advantages:
- Access to necessary heavy equipment
- Expertise in working with high-temperature materials
- Knowledge of local regulations and best practices
- Skills required to create proper slope and adequate drainage
To find a reputable asphalt contractor in your area, consult the Better Business Bureau website. Look for contractors with positive reviews and a history of success with completing projects similar to yours.
Preparing for the Driveway Extension
Once you’ve secured the necessary permissions and hired a contractor, it’s time to prepare for the actual work. This phase involves several critical steps to ensure a solid foundation for your new driveway extension.
Marking Utilities
Before the excavation stage, it’s crucial to locate and mark all underground utilities. In the video, McCullough emphasizes the importance of this step to avoid damaging essential services.
Your contractor should contact utility locating services to identify and mark the following lines:
- Gas pipes
- Sewer connections
- Underground electrical cables
- Water lines
Knowing where these utilities are located helps prevent disruptions and ensures a safer work environment during excavation.
Excavation Process
With utilities marked, the excavation process can begin.
This step involves the following:
- Removing existing grass and topsoil
- Digging to the appropriate depth (typically about 15 inches)
- Creating a level base for the new driveway extension
The contractor will use specialized equipment, such as an excavator, to complete this task efficiently. They’ll pay extra attention to areas near marked utilities to prevent accidental damage.
Compacting the Soil
After excavation, it’s necessary to compact the soil. Proper compaction creates a stable base for the driveway extension.
Here’s what this process involves:
- Using a drum vibratory roller to compress the soil
- Adding layers of crushed stone for drainage and stability
- Compacting each layer to ensure a solid foundation
Proper compaction is crucial for preventing future settling and cracking of your driveway extension.
Installing the Asphalt Driveway Extension
With the groundwork prepared, it’s time to install the actual asphalt surface. This process involves multiple layers and specialized techniques to ensure a durable and long-lasting result.
Apply the Base Layer
The first step in the asphalt installation process is applying the base layer. This layer consists of ¾-inch crushed stone, asphalt binder, and sand.
The base layer is spread evenly across the prepared area and then compacted using a roller. This layer provides the primary structure and support for your driveway extension.
Add the Surface Layer
Once the base layer is in place and compacted, the surface layer is applied. This layer consists of ⅜-inch stone, asphalt binder, and additional sand.
The surface layer is carefully spread and shaped to ensure proper drainage and a smooth finish. Skilled workers use special boots and tools to work with the hot asphalt, which can reach temperatures between 200 and 300 degrees Fahrenheit.
Compacting and Finishing
After both layers are in place, the contractor will use a roller to compact the entire surface. This process ensures a smooth, even finish and helps bond the layers together. Finally, a plate compactor may be used to address any remaining imperfections and create a polished look.
Benefits of Asphalt Driveway Extensions
Choosing asphalt for your driveway extension comes with several advantages. Understanding these benefits can help you appreciate your investment and make informed decisions about future maintenance.
Increased Durability
Asphalt is known for its durability, making it an excellent choice for areas with heavy traffic. Its flexible nature allows it to withstand weight and temperature fluctuations without cracking.
Cost-Effectiveness
Compared to other materials, asphalt is relatively cost-effective. The installation process is quick, which can save on labor costs. Additionally, asphalt’s longevity means fewer repairs and replacements over time.
Easy Maintenance
Maintaining an asphalt driveway is straightforward. Regular sealing can prevent cracks and prolong the surface’s life. Small repairs are easy and can be done by homeowners or professionals, ensuring the driveway looks new for years.
Caring for Your New Driveway Extension
Proper care and maintenance will help ensure your new driveway extension lasts for years to come.
Here are some essential tips for maintaining your asphalt surface:
- Allow the asphalt to cool and harden for at least four days before driving on it
- Avoid parking heavy vehicles on the new extension for several weeks
- Seal the asphalt after about six months to protect it from UV rays and moisture
- Clean the surface regularly to prevent staining and damage
- Address any cracks or damage promptly to prevent further deterioration
With proper care, your asphalt driveway extension can last up to 30 years, providing valuable additional space to your property.
Regular Cleaning
Routine cleaning helps maintain the driveway’s appearance and prevents debris from causing damage. A simple sweep or rinsing with a hose can remove dirt and prevent stains. For tougher stains, a mild detergent or specialized asphalt cleaner can be used.
Sealing the Driveway
Sealing the asphalt will help maintain its longevity. Depending on the local climate and usage, the sealing process should be done every two to three years. This protective layer acts as a barrier against UV rays, water, and chemicals.
Repairing Cracks Promptly
Addressing cracks and potholes as soon as they appear prevents them from expanding and causing more significant damage. Small cracks can be filled with asphalt crack filler, while larger areas may require professional attention.
Resources
In the video, McCullough recruits the help of a local asphalt contractor to install a parking spot for a homeowner on a busy street.
Contact utility locating services in preparation for any project that requires digging. Once water, gas, and sewer lines that run underground are identified and marked, it’s safe to proceed with digging.
Visit the Better Business Bureau website to find reputable asphalt companies near you.
The asphalt is sealed with a product manufactured by Pioneer Sealcoat, LLC.