GB/T 17369 - 2014 provides a guide for the selection of thermal insulation materials for buildings. It sorts out the main performance of thermal insulation materials, covering thermal conductivity, density, fire resistance, moisture absorption, etc. Starting from the needs of different parts of the building, such as roofs and walls, it explains how to select suitable thermal insulation material performance indicators according to actual working conditions, such as temperature, Humidity, load and other conditions. The standard helps architectural designers and engineers understand different performance characteristics, weigh the pros and cons, and accurately select thermal insulation materials that meet the requirements of energy saving, safety and durability, and help improve the overall thermal insulation effect and energy saving level of the building.