Asphalt is sand, rock, and oil. The oil could be the glue that retains all of it with each other and is extremely at risk of issues with sun, h2o, and website traffic. To maintain the asphalt from drying and cracking it must be sealcoated. Sealcoat is a Sunshine block https://zionahnsy.vigilwiki.com/6493502/orlando_sealcoating_an_overview