What should we pay attention to when choosing insulation materials?

With the development of building energy-saving work in China and the urgent demand for building thermal environment, building energy-saving technology will be rapidly developed. Therefore, doing a good job in building energy-saving design, using energy-saving design methods reasonably, and improving the effective utilization of energy will undoubtedly drive the national and local building energy-saving cause, and promote the progress of building energy-saving technology in the whole society. When designing energy-efficient buildings, thermal insulation materials should be selected. The purpose is to reduce heat loss in winter to maintain the required indoor temperature and prevent solar radiation in summer; Or in hot summer and warm winter areas, the construction of building exterior walls and roofs is to prevent solar radiation heat. When choosing insulation materials, the following points should be considered:

1、 Temperature range of thermal insulation materials

According to the temperature resistance range of materials, thermal insulation materials are divided into low-temperature insulation materials, medium temperature insulation materials, and high-temperature insulation materials. The temperature resistance of the selected insulation material must comply with the usage environment. When choosing low-temperature insulation materials, it is generally recommended to choose materials with a classification temperature that is about 10-30 degrees lower than the long-term use temperature; When choosing medium temperature insulation materials and high temperature insulation materials, it is generally recommended to choose materials with a graded temperature that is about 100-150 degrees higher than the long-term use temperature.

2、 Physical form and characteristics of thermal insulation materials

The forms of thermal insulation materials include: boards, blankets, cotton, paper, felt, shaped parts, textiles, etc. Different types of insulation materials have different physical properties (processability, wear resistance, pressure resistance, etc.). The shape and physical properties of the selected insulation material must comply with the usage environment.

3、 Chemical properties of materials

Different types of insulation materials have different chemical properties (such as water resistance, corrosion resistance, etc.). The chemical properties of the selected insulation material must comply with the usage environment.

4、 Thermal insulation performance of materials

The thickness of the insulation layer in an insulation system usually has a large value. The thickness of the insulation layer required for using the selected insulation material must be within a large range of values. In some cases where the insulation layer thickness is thin, it is often necessary to choose insulation materials with good insulation performance (such as Paiji insulation soft felt, Nagi insulation soft felt).

The environmental protection level of the selected insulation material must meet the design requirements. Some export products often require highly environmentally friendly insulation materials. After determining the material range, calculate the cost based on the material price and choose materials with good cost-effectiveness.

In summary, the selection of insulation materials is based on the usage environment, including shape, physical and chemical properties, insulation performance that meets the usage environment, and environmental protection level. After cost calculation, the insulation materials to be used have been determined.