The most common types of alternative daily covers include synthetic liners, tarps, foams, and processed organic or construction materials. Synthetic liners are made from durable plastics or geosynthetic materials and provide a flexible, weather-resistant barrier that is often reusable. Tarps, which can be made of fabric or reinforced plastic, are spread over the waste and removed the next day.
Spray-on foams or emulsions form a thin protective layer that hardens quickly. Processed organic materials, shredded green waste, or construction debris can also be used when they meet regulatory standards for coverage and environmental safety. Each type is selected based on factors such as ease of application, cost, durability, and space efficiency. These covers are designed to perform the same functions as soil, preventing exposure of waste while saving landfill space and improving operational efficiency.