Approach to assessment of thermodestructive resistance of polymer-containing finishing building materials

The paper presents the review results of the conformity assessment existing system of finishing building materials with safety requirements. It is noted that the existing assessment methods do not take into account the change in the properties of finishing building materials in the temperature range from 40° C to the temperature of their ignition / combustion / smoldering. The aim of the study is to substantiate the approach and develop a method for assessing the thermal destructive resistance of finishing building materials. In this work, a study of the thermal destruction of finishing building materials was carried out, the dependences of the qualitative and quantitative composition of thermal destruction products on temperature were established, and the influence of temperature and time on the dynamics of thermal destruction was determined. On the basis of the data obtained, the criterion of the thermal destructive resistance of finishing building materials was substantiated, a method of assessing the thermal destructive resistance of finishing building materials was developed and their classification was proposed. The developed methodology and classification of finishing building materials can be applied when assessing the fire hazard of finishing building materials; when preparing proposals for regulatory documents and regulatory legal acts with the aim of safer use of finishing building materials; when modeling the development of hazardous fire factors, allowing to take into account the effect of thermal destruction products.