The choice of the type of coating for a particular room begins with the formulation of a list of properties that it should possess. Moreover, the requirements conditioned by standard operating conditions should be considered as the first priority, and only then – special ones. To date, the main floor coverings can be considered: • Parquet board • Carpet • Laminate (laminated parquet) • Linoleum • Ceramic tiles (porcelain stoneware) Standard conditions, in accordance with the requirements of regulatory documents on construction, are considered to be: • The degree of compliance of the selected coating with the conditions of the planned operation (wear resistance of the material, determined according to EN 649/685). The constructive possibility of repairing or quickly restoring the coating after its significant damage. The provided possibility of modular replacement. • Possession of the ISO 9001 permanent quality certificate by the coating manufacturer. The coating has the ability to return to its original state (self-repair) after the effects of extreme loads are removed. Aesthetic appeal of the coating design (color, pattern, texture, etc.). • Resistance to UV radiation (light resistance). Simplicity of the installation technology. The manufacturer's capabilities in terms of providing comprehensive supplies of components combined in physico-chemical parameters with the coating (adhesives, care products, leveling masses, etc.). • Inherent ease of disassembly of the coating, without damaging the base. Matching the appearance of the coating to the general style of the interior of the room. Ecological purity of the coating material. Durability. After the buyer decides on the first question, it is necessary to answer the second, namely: to analyze the coatings in terms of compliance with their special conditions. At this stage, it is considered: • The amount of current conductivity possessed by the coating. The possibility of using this coating on planned evacuation routes according to the following indicators: flammability, smoke formation, flame propagation, toxicity, flammability. • Sound-absorbing ability. The level of emissions from the coverage (in terms of use in the NWP). The degree of resistance to penetration of pathogenic microbes into the pores of the coating. Bacteriostatic properties. • The level of resistance to external aggressive environment. Ease of decontamination. The use of only natural ingredients in the manufacturing process, etc. In fact, the coating must meet several parameters at once, which uniquely determine the type of coating required. hay88