Roofing materials are an essential part of any building, and there are many different types to choose from. Tarpaper (8 letters) is a heavy-duty paper coated with TAR or ASPHALT, which is used as a waterproofing material. TILE (4 letters) is a flat piece of material, usually ceramic or stone, used to cover roofs. THATCH (6 letters) is a layer of dried vegetation, such as straw, used to cover roofs. SLATE (5 letters) is a fine-grained metamorphic rock used for roofing. THATCHING (9 letters) is the process of creating a roof with THATCH. FELT (4 letters) is a type of fabric made from wool or synthetic fibers, which is used as a waterproofing material. TIN (3 letters) is a lightweight metal used for roofing. TAR (3 letters) is a dark, viscous liquid derived from petroleum, which is used as a waterproofing material. ASPHALT (7 letters) is a sticky, black, and highly viscous liquid or semi-solid form of petroleum, which is used as a waterproofing material. SLATES (6 letters) are thin pieces of SLATE used for roofing. BITUMEN (7 letters) is a black, viscous mixture of hydrocarbons, which is used as a waterproofing material. Terne (5 letters) is a type of alloy made from TIN and lead, which is used for roofing. TILES (5 letters) are small, flat pieces of material, usually ceramic or stone, used to cover roofs. Pantile (7 letters) is a type of roof TILE with a curved shape. Steinem (7 letters) is a type of roofing material made from a combination of SLATE and terne. Tarpapers (9 letters) are heavy-duty papers coated with TAR or ASPHALT, which are used as waterproofing materials.