If you own or manage property in Arizona, does it seem like asphalt cracks worsen overnight? If so, it may not be your imagination.
Arizona’s desert climate can be harsh on asphalt, and without proper maintenance, minor surface issues can quickly spiral into major, costly repairs.
In this article, we’ll discuss why cracks spread faster in our region’s dry conditions and how solutions like Sunrise Asphalt’s professional crack filler can help you prevent costly damage.
Asphalt and the Desert Climate
Asphalt must withstand the daily weight of vehicles, so it is designed to be both durable and flexible. That said, desert conditions can quickly take a toll.
Wear and tear is accelerated by the combination of dryness, heat, and seasonal weather swings, leaving asphalt more vulnerable to cracking. Without regular maintenance, minor cracks can quickly escalate into expensive repairs.
Intense UV Rays
Arizona’s relentless sunshine and harsh UV rays are tough on asphalt. It breaks down binders and oils that hold asphalt together, causing it to lose flexibility. When asphalt becomes hard and brittle, new cracks form more easily and existing cracks widen faster.
UV rays, as well as temperature fluctuations and oxygen exposure, accelerate oxidation. Oxidation causes the asphalt to become very stiff and brittle, and if left unaddressed, can cause significant damage.
What is oxidation? When a molecule, atom, or ion comes in contact with oxygen, it creates oxidation (think of iron rusting or sliced fruits browning). The oxidation process actually begins as soon as asphalt is laid.
In Arizona, where intense sun is a year-round factor, ignoring UV-related damage can drastically shorten the lifespan of your asphalt.
Arid Climate
Moisture in the air can play a big role in the health of asphalt, as it can slow the oxidation process that gradually breaks down the binding oils. That helps keep pavement flexible. However, in Arizona, the air is arid most of the year.
The lack of humidity accelerates oxidation, making asphalt harder and brittle faster than in a humid climate. When it loses flexibility, even minor hairline cracks can widen and spread more rapidly.
The region’s arid climate makes preventive measures, such as crack filling and seal coating, especially important.
When Rain Does Fall
Arizona isn’t exactly known for rain, but that doesn’t mean it’s not a factor. Monsoon season and occasional winter storms can bring sudden, heavy bursts of rain.
Water is actually one of the most common causes of asphalt deterioration, especially if there’s not proper drainage. When water is left standing or seeps into existing cracks, it can weaken the structure and accelerate damage. That allows cracks to widen and turn into potholes or become more extensive structural issues.
Taking preventative steps, such as crack filling, seals openings in the asphalt and prevents erosion beneath the surface. That helps prolong the life of the asphalt and reduce the likelihood of costly repairs down the road.
Dust and Debris
Dust, sand, and debris can worsen the problem. Over time, the windblown particles can accumulate in the cracks and crevices of asphalt.
When the rain falls or there’s morning condensation, the dust- and sand-filled cracks are unable to drain properly. The trapped water erodes the asphalt and weakens the base, allowing for cracks to widen more quickly.
The debris can also compromise the effectiveness of preventive measures, such as crack filling. That is why professionals at Sunrise Asphalt first remove all debris from the cracks using gas-powered blowers.
The Importance of Early Intervention Like Crack Filling
In Arizona’s desert climate, even a hairline crack can quickly escalate. Proactive maintenance, such as crack filling, is key.
While there are no permanent solutions for cracks, a highly effective measure is hot crack filling. Cracks are cleaned with a gas-powered blower and then filled with a hot rubber crack sealant. This product stays pliable to help with the constant expansion and contraction of cracks. When paired with regular seal coating, it can be especially effective.
If you notice cracks starting to appear, don’t wait. Applying crack filling as soon as possible helps prevent water, dust, and debris from penetrating the asphalt and compromising the base layers. Early intervention extends the lifespan of the asphalt and protects your investment.
Sunrise Asphalt is here to help. Our services include crack filling and seal coating. We are a local, family-owned business with the expertise you need. Call us today!
