Types of waterproofing materials

In those buildings where the old layout is used rolls, which are based on cardboard impregnated with waterproofing materials. Rolls made using modern technologies are free from many shortcomings of Soviet-era rolls. Adhesive lamellar compositions based on organic binders and dispersion fillers are mastics. Hot and cold mastics based on petroleum bitumen are used for roof waterproofing. Modern mastics are made on the basis of materials such as petroleum bitumen, polypropylene, low molecular weight polyethylene, which have high elasticity, heat resistance, and the ability to restore tightness. Powders are made from a mixture of cement, synthetic resins and additives.

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Waterproofing powders harden very quickly, so they tightly fill joints, cracks and seams. They have high waterproofing properties, are easy to prepare, but are inelastic. Not used in the construction of buildings that are subject to vibrations and shrinkage loads. Hydrophobic liquids are prepared from a mixture of silicones, organic solvents, compounds of silicic acid esters. This exterior waterproofing material absorbs concrete surfaces well. The surface treated with this composition repels water and allows air to pass through. Film is also used for waterproofing. It is practical and lightweight material. Films are divided into polyethylene, polypropylene and membranes.