100% Markrolon uv coated decorative anti-drop fire proof anti-fog 4mm policarbonate sheet Hollow polycarbonate sheet PVC Roof Tile is a type of plastic sheet that is made up of two layers of polycarbonate material with a hollow space in between. The hollow space provides insulation and makes the sheet lighter in weight than solid polycarbonate sheets. It Hollow Polycarboante Sheet is commonly used in roofing, skylights, greenhouse panels, and other applications where transparency, durability, and thermal insulation are required. The sheet Hollow Polycarboante Sheet ASA Synthetic Resin Roof Tile is available in various colors, thicknesses, and sizes to suit different needs. It Hollow Polycarboante Sheet Skylight Transparent Roof Sheet is also UV-resistant, impact-resistant, and has good fire-retardant properties.