Have you decided it is time to replace your old concrete driveway? Is it damaged, dull, or just an eyesore? If so, you may wonder – should you lay new asphalt over old concrete?
This is a good question and something many business owners and homeowners have. Most experts recommend asphalt driveways instead of concrete for a few reasons.
- Faster to install
- Better weather resistance
While these benefits clarify that asphalt is the winner, issues arise when there is a concrete driveway present on the property, where the asphalt needs to be installed.
When it comes to the question – can you install asphalt over concrete – the answer is yes. However, removing the concrete first is preferable. Some of the reasons to do this can be found here.
Different Sub Bases
One of the biggest issues about installing asphalt driveways instead of concrete is how the site is prepared.
Using concrete, strength, and stability can be increased by laying a thicker slab. Because of this, the base isn’t really prepared. The ground under a concrete driveway may shift or shrink, and there is no way to know about this until you remove the concrete.
Installing an asphalt driveway over the concrete creates two main concerns:
- The sub-base that wasn’t prepared
- The concrete itself
If there are issues with either layer, it will be seen through the asphalt. If asphalt driveways installed over the unstable concrete, the asphalt surface may become unstable. The expansion joints present in the concrete can cause cracks in the asphalt, which men expensive and ongoing repairs. In more extreme cases, ground shifting may cause the entire surface to crack.
Pouring asphalt over concrete looks good when it is first done; however, there will be issues as time passes. It really doesn’t make financial sense to do this since the driveway will need more work down the road.
Asphalt is the preferred material because it looks better and lasts longer when built from the ground up. The asphalt driveway will have a stable, proper base and require minimal maintenance when this is done. As time passes, this is going to help you save money.
While there are some situations when concrete and asphalt will work together, such as with edges and curbs, generally they are beside each other, rather than being on top of each other.
If you make the right decision to have the old concrete driveway removed before applying the asphalt surface, your contractor can recycle the material. This is good for the environment and prevents this waste from going to landfills.
Is it time to have a new driveway installed? If so, asphalt is the best material to consider. It offers various benefits; however, it is a good idea to remove the concrete driveway before applying the asphalt surface. Being informed will help you make the right decision and ensure your new driveway lasts for many years, problem-free, which will help you save time, money, and frustration.