What to Know About Proper Care and Maintenance for Asphalt Parking Lots

Proper care for asphalt parking lots can extend their usable life by many years and prevent costly repairs. This guide covers key maintenance practices every property owner in Summit County, CO, should know, from sealcoating schedules to crack repair and resurfacing decisions. Understanding how high-altitude conditions affect your pavement is essential to protecting your investment. 

How Long Do Asphalt Parking Lots Last at High Altitude?

Well-maintained asphalt parking lots in Summit County, CO, typically last between 15 and 20 years. At elevations of 9,000 feet and above, intense UV radiation and repeated freeze-thaw cycles accelerate wear more than in lower-altitude climates, causing surfaces to oxidize and crack faster. 

How Freeze-Thaw Cycles Damage Pavement

When water enters a crack and freezes, it expands with tremendous force. Each refreeze event widens the crack further. Over a single winter in Dillon, Silverthorne, or Frisco, dozens of these cycles can turn a hairline fracture into a pothole. Catching cracks early is the single most cost-effective maintenance step available. 

Why UV Exposure Matters at Elevation

High-altitude UV rays oxidize the asphalt binder faster than in lower climates. Oxidized asphalt becomes brittle, loses flexibility, and ravels at the surface. A timely sealcoat can make a measurable difference in longevity. 

Is Resurfacing Cheaper Than Replacement in Summit County?

Resurfacing costs significantly less than full replacement and is appropriate when the base layer is still structurally sound. It is generally the right choice when surface damage is widespread but cracks have not penetrated to the base. If the subbase has failed, full replacement may be unavoidable. 

The Essential Parking Lot Maintenance Schedule 

Routine maintenance is the most reliable way to keep repair costs manageable over time. 

▸ Sealcoating: Apply every 2 to 3 years. UV intensity and snowmelt degrade the binder faster at 9,000 feet than at lower elevations. 

▸ Crack filling: Address all cracks before the first hard freeze, ideally by early October, to prevent water infiltration during winter. 

▸ Pothole patching: Repair potholes promptly using materials that bond properly in cold temperatures. 

▸ Drainage inspection: Clear inlets and check for pooling water after snowmelt, as standing water softens the subbase and shortens pavement life. 

▸ Striping: Refresh line striping as fading occurs to maintain safety, ADA compliance, and clear traffic flow. 

A consistent schedule can add years to a paved surface and reduce the frequency of major interventions. 

Resurfacing vs. Full Replacement: A Quick Cost Comparison

Resurfacing applies a new asphalt layer over an existing surface, restoring smoothness without the expense of full reconstruction. Replacement requires removing old pavement, regrading the base, and repaving from scratch. For most commercial lots in Summit County where the base is intact, resurfacing restores performance at a fraction of the cost. A professional subbase assessment before deciding can save property owners significant money. 

Get Expert Help Serving Summit County, CO

Proper maintenance for asphalt parking lots is an ongoing commitment. For HOAs, lodging operators, and commercial property owners in Summit County, working with a qualified local contractor can mean the difference between a surface that lasts 15 years and one that needs replacement in 8 years. 

Double M Asphalt & Coatings Inc. is ready to help you develop a maintenance plan tailored to your property. Contact us today to schedule your assessment.