Along with The Supporting Structures and the Foundation, The Roof is a Key Element of Any Structure. It Protects The Building from the Negative Impact of the Environment: Precipitation, Wind, Ultraviolet Radiation. TheFore, Roofing Issues Shoup Be Treated with Special Attendation. A Separate Consideration Deserves Waterproofing. Various Materials are used for roofing waterproofing: Polystyrene, Bitumen, Peramin, Mastic, Special Membranes and So on. The Most Common are Bitumen and Polystyrene. Bitumen Materials Also Include Roofing Material, Which is Very Popular in the Arrangement of Roofs Residential and Industrial Buildings. Ruberoid is a Rolls of Cardboard Sheets that are satUrated with Bitumen orTaining Materials Similar to it. ABOUT WATERPROOFING THIS MATERIAL Will BE Discussed Below.