A correctly installed asphalt pavement usually lasts 15 -20 years with regular maintenance. Preventing water accumulation is a crucial factor in ensuring the longevity of asphalt pavement. Standing water damages the pavement and causes cracks, exposing the underlying asphalt to the effects of weather and traffic wear. Cracks change the shape of your pavement and cause ruts or dips, which may impede the use of such areas.
While installing an asphalt pavement, professional, experienced contractors like D&J Site Construction LLC in McAllen, TX, ensure that all necessary measures are taken to prevent the pavement from water damage.
Here we share three primary ways to ensure that water doesn’t accumulate on your parking lot.
Ensure a Slope
The perfect asphalt parking lot grade does not allow water to accumulate in the center; you should maintain a 2% slope on your parking lot. Keeping this specification will help prevent puddles from forming during heavy rains.
Install an Effective Drainage System
A correctly installed drainage system is crucial for the longevity of a parking lot. The parking lot drainage system maintains the parking lot at an optimal level by draining water away from the surface. If not maintained, parking lots are particularly susceptible to damage due to flooding.
The primary drainage goal of parking lots is to direct water quickly and efficiently to the storm sewer or open-channel drainage with minimum impact on vehicle/pedestrian traffic and the environment. Water removal from paved surfaces will eliminate water from reaching the subgrade, preventing cracks in the weakened subgrade and extending pavement life in a parking lot.
The components of a storm drainage system designed to move runoff from storms include gutters, ditches, inlets, manholes, pipes, other conduits, open channels, pumps, detention/retention ponds, water quality control facilities, and so on.
When planning a parking lot drainage system, five key components must be considered: the subgrade, the pipe layer choice, subsurface grading, the parking lot texture, and sealant.
Standard parking lot drainage systems often consist of a simple, straight grade to direct water toward the inlets and piping system beneath the parking lot. While this may do an adequate job, it is typical for parking lots with asphalt or concrete surfaces not to incorporate subsurface grading that could improve drainage performance. A parking lot’s drainage system can be improved by grading that channels water to lower parking lot areas and parking stalls. This will help reduce ponding within parking stalls or around parking bumpers. Using a perforated pipe beneath the parking surface will allow water into the piping system faster than it would otherwise drain without including subsurface drainage beneath the parking surface.
After installing an asphalt parking lot, one of the best ways to keep it safe from damages due to water, chemicals, UV rays, etc., is sealcoating it. The sealcoat combines bituminous-based materials or acrylics, water, silica sand, polymer additives, and other proprietary fillers and solids. When applied by a professional contractor, sealcoating creates a slip-resistant surface with a deep black sheen that improves the parking lot or driveway.
D&J Site Construction LLC is the premier asphalt and concrete parking lot installation company in McAllen, TX.
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