Walk across a parking lot in Dunwoody or Sandy Springs on a July afternoon and you can feel it through your shoes. Atlanta's average high in July sits around 89°F, and heat waves push well past that — but air temperature is only half the story. Dark asphalt absorbs sunlight all day, and the surface itself can run 40 to 60 degrees hotter than the surrounding air. On a 90-degree Georgia day, your pavement may be pushing 140°F.
That kind of heat, repeated four to five months a year, is one of the two great forces (the other is water) that age asphalt in Metro Atlanta. Here's what summer actually does to your pavement — and what smart property managers, HOA boards, and homeowners do about it.
How heat ages asphalt
UV oxidation. Sunlight breaks down the binder — the black, flexible "glue" that holds the stone aggregate together. As the binder oxidizes, asphalt fades from rich black to gray and turns brittle. Brittle pavement can't flex under traffic, so it cracks instead. This is the slow-motion damage most owners don't notice until the surface looks washed out and crack lines start spreading.
Softening and scuffing. Asphalt is a thermoplastic material: the hotter it gets, the softer it gets. On the hottest days you may see power-steering scuffs where cars turn their wheels while parked, or shallow indentations under dumpsters, trailer jacks, and motorcycle kickstands. Fresh asphalt — anything paved in the last year — is especially vulnerable while it finishes curing.
Rutting in heavy-load zones. Drive lanes at retail centers, truck routes behind loading docks, and dumpster pads take concentrated loads exactly when the pavement is softest. Summer is when marginal-thickness asphalt reveals itself with wheel-path ruts and depressions.
Faded striping. UV bleaches paint just like it bleaches binder. Faded stalls, crosswalks, and fire lanes are more than cosmetic — they're a liability and compliance issue on commercial lots. A line striping refresh is one of the cheapest ways to make a heat-worn lot look maintained.
The Georgia one-two punch: heat plus thunderstorms
Atlanta gets roughly 50 inches of rain a year, and July is one of the wettest months thanks to near-daily pop-up thunderstorms. That combination is harder on asphalt than heat alone: the sun opens hairline cracks and dries out the surface, then a downpour drives water into every opening it created. Water that reaches the base layer undermines the pavement from below — which is why small summer cracks so often become fall potholes.
The fix is to close the door before the storm arrives. Crack filling and sealing keeps water out of the base, and it's a fraction of the cost of the pothole repair and patching you'll need if water gets in.
Five summer moves that protect your pavement
- Sealcoat on a schedule. Sealcoating is essentially sunscreen for asphalt — it restores the dark, UV-resistant surface layer and slows oxidation. Summer's long, dry, hot stretches between storms are ideal curing windows for it.
- Seal cracks before they widen. Anything wider than a pencil line deserves attention before the next storm cycle.
- Watch your heavy-load zones. If dumpster pads or truck lanes are deforming, address them before winter locks in the damage.
- Restripe faded markings. Especially ADA stalls and fire lanes on commercial properties.
- Put it on a calendar. An asphalt maintenance program sequences all of this so nothing slips between budget cycles.
Is summer a bad time to pave? Actually, the opposite
Here's what surprises many owners: summer is one of the best times of year to install asphalt in Atlanta. Hot-mix asphalt arrives at roughly 300°F and must be compacted before it cools. In summer, the mix stays workable longer, giving crews a generous compaction window and helping produce a dense, tight, long-lasting mat. Crews start early to beat afternoon storms, and parking lot paving or driveway projects routinely wrap before the heat peaks.
The main caution is on the other side of the trowel: newly paved asphalt stays tender through its first hot season. Avoid sharp stationary turns, distribute point loads (plywood under trailer jacks works), and hold off on sealcoating until the surface has cured — typically several months to a year, depending on conditions.
Local crews who plan around the heat
Biran Paving Group is a licensed and insured, owner-led paving company based in Dunwoody, serving commercial and residential properties across Metro Atlanta. Over 15+ years and 500+ projects, we've built our summer playbook around Georgia weather: early starts, tight compaction windows, and maintenance schedules that put sealcoating and crack sealing in the right season. Now operating alongside Michael's Asphalt, we have more crews and more scheduling flexibility than ever.
If your lot is showing gray, scuffed, or cracked after another Georgia summer, call (678) 332-8941 or email biranpaving@gmail.com for a free assessment — we'll tell you honestly whether it needs maintenance now or can wait a season.