Louisville Metro has run limited cool-pavement and reflective-surface pilots through Public Works and Sustain Louisville, but there is no general ordinance requiring residents or private developers to install reflective pavement on driveways or parking lots.
Cool-pavement coatings reflect more solar radiation than standard asphalt, lowering surface temperatures by several degrees. Louisville has piloted reflective coatings on selected streets and parking lots in heat-vulnerable corridors, working with Public Works, MSD, and university partners. These projects are voluntary or grant-funded rather than mandatory. The LDC does include parking lot landscaping and shading standards in Form Districts that indirectly reduce heat from large impervious surfaces, but does not specify reflectivity values. Property owners considering cool-pavement coatings should still confirm stormwater compatibility with MSD before resurfacing.
There are no penalties for choosing or not choosing cool pavement on private driveways. Larger sites must still satisfy LDC parking-lot landscape requirements, with violations enforced by Develop Louisville inspectors.
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