Asphalt driveways are one of the most reliable, long-lasting parts of any home. The very nature of asphalt means it’s designed to go the distance, even when Kiwi weather throws everything it can at your driveway. That said, it pays to think about your asphalt driveway lifespan. Whether you’ve moved into an older home with an asphalt driveway or you’re considering installing a brand-new one to reinvigorate your property, this is the place to be. Read on for a detailed breakdown of everything that can impact your asphalt driveway lifespan, and what kind of longevity you can expect from a new installation.
How long does an asphalt driveway usually last?
In typical New Zealand conditions, a well-installed asphalt driveway can last anywhere from 15 to 30 years. That’s a pretty wide range, because no two driveways weather the same amount of use, sun exposure, or moisture. Generally speaking, if you’ve got a newer driveway, you’re likely looking at the upper end of that range. Older driveways, especially ones that haven’t been maintained or were laid thin, may fall closer to the lower end. The thing is, your particular asphalt driveway lifespan will depend on a few factors (most of which you can influence with the right care). Let’s look at what those factors are.
What impacts your asphalt driveway lifespan?
Weather and sun exposure
We don’t have to tell you how strong New Zealand’s UV levels are. They’re among the highest in the world, and over time, that sun exposure can oxidise the stuff binding the asphalt together (a.k.a. the ‘binder’). This makes the surface much more brittle, and when paired with heavy rainfall, your driveway is constantly expanding and contracting, absorbing moisture. None of this is a problem for asphalt in and of itself. But it
does speed up wear if it’s left uncared for.
Drainage and water
It might seem odd, but when it comes to an asphalt driveway lifespan, one of the biggest enemies is water. If water starts to pool, seep underneath, or flow across weak points, it can break down that robust foundation layer. Proper drainage protects your driveway’s lifespan more than almost anything else.
Traffic and weight
A family home with two cars is one thing. A rural property with regular truck or trailer access is another. Heavy loads put more pressure on the asphalt layers, and over time, that stress can shorten the lifespan if the driveway wasn’t constructed with those loads in mind. One thing many people don’t know is that how you park your vehicle in your driveway can even affect its lifespan. If you try to avoid turning your wheels while stationary, then you can avoid scuffing the asphalt.
Installation quality
Unfortunately, every driveway’s quality is usually at the mercy of the crew that installed it. If your home’s driveway was installed poorly, then your asphalt driveway lifespan will be significantly impacted. Determining factors include the depth of the asphalt, the quality of base preparation, and the material’s compaction. All of these can influence how long your driveway will last, which is why a well-constructed driveway will withstand Kiwi weather conditions much better than a thin or rushed installation.
Maintenance
Asphalt is generally pretty low on driveway maintenance, but there are one or two important care tasks you should be scheduling into your calendar. If you notice hairline cracks, edge damage, or potholes left untreated, they can all spread faster than most homeowners expect. A quick repair early on will lengthen your asphalt driveway lifespan, which makes it all worth it.
How to extend your asphalt driveway lifespan:
Generally speaking, we recommend you keep the surface clean with an occasional wash, keep an eye out for cracks or pooling water, and reseal your driveway every few years to keep that asphalt flat and bound. If your driveway has widespread cracking, deep potholes, sinking areas, or serious structural issues under the surface, then it’s likely that your driveway has reached the end of its life. In this case, you might want to look into resurfacing or replacement as a more robust long-term option.
A great rule of thumb for asphalt driveway care is as follows: If the asphalt layer itself is damaged but the foundation is solid, resurfacing is usually enough. If the foundation has failed, full replacement is your best bet for both value and lifespan. All of that accounted for, your asphalt driveway lifespan should seriously surprise you! If you have a new driveway on your property, you have up to 30 years of a long, beautiful life ahead of you, especially if you put the right care into it.
Install a long-lasting new asphalt driveway with Asphalt & Civil.
We are your asphalt and concrete paving specialists, providing residential and commercial services all across the Auckland area. Consider us your trusted name for all things asphalt and concrete. Whether you’re looking to extend your asphalt driveway lifespan or bring a new parking lot to life, we can help.
Get in touch for a free quote today.
