19 Non-metal building materials, namely, plastic planter trays for moisture retention and drainage structures for growing vegetation on roofs; Non-metal building materials, namely, moisture retention and drainage structures composed of modular trays, featuring a growing medium and vegetation; Non-metal construction materials, namely, plastic planter trays for moisture retention and drainage structures for growing vegetation on roofs; Non-metal construction materials, namely, moisture retention and drainage structures composed of modular trays, featuring a growing medium and vegetation; Non-metal roofing; Non-metal structures for plastic planter trays for moisture retention and drainage structures for growing vegetation on roofs; Non-metal structures for moisture retention and drainage structures composed of modular trays, featuring a growing medium and vegetation