Get matched with top asphalt driveway pros in Unionville, MO

This creates a risk for your driveway to fail after asphalt curing because it doesn't have a lasting bond with the surface. In order to get asphalt to perform as intended, it's necessary to prepare the dirt surface correctly first. The loose soil base under the new driveway must be compacted until it is stable enough to support the weight of the asphalt.

While some areas may allow for a slope of up to 20%, this is often the maximum slope for driveways, with a few exceptions of up to 25%. Other regions may have a maximum of 12%, 15%, or 18%, so check with your local building department to ensure you’re laying a driveway that is up to code for your location.

Asphalt driveways last anywhere from 15 to 30 years, but if you don’t stay on top of repairs, you may find yourself spending extra to replace your driveway before its typical lifespan. Stay on top of repairing cracks and potholes by routinely inspecting your driveway once or twice a year. It’s a good idea to pressure wash your asphalt driveway at least once a year to keep it clean. Apply a sealer every one to five years, based on your climate.

Building a road on a slope requires careful planning and will normally require a drainage system underneath to prevent flooding and damage to the road over time. Your professional may lengthen your road to create switchbacks if the slope directly to your home is too steep, as there are regulations for maximum road slope. The drainage system will help prevent runoff from the higher side of the slope from damaging the asphalt or concrete. Keep in mind that building a road on a slope isn’t a good DIY project, as a lot can go wrong.