Technical Study on the Rock Wool/Polyurethane Composite Insulation Board and Its External Insulation System for Ultra-low Energy Consumption Buildings

5th Annual International Workshop on Materials Science and Engineering

Lu, Guozhong^1^2 ; Zheng, Xuesong^1^2 ; Zhang, Jiayang^1^2

Beijing Building Materials Academy of Sciences Research Co., Ltd, China^1

Beijing Passive Low-Energy Consumption Construction Engineering Technology Research Center, Beijing

100041, China^2

关键词: Climate characteristics;    Composite insulation;    Energy-saving buildings;    External thermal insulation systems;    External wall thermal insulations;    Insulation performance;    Thermal insulation materials;    Use of renewable energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012074/pdf
DOI  :  10.1088/1757-899X/585/1/012074

来源: IOP

【 摘 要 】

Ultra-low energy consumption buildings refer to the buildings which adapt to the climate characteristics and natural conditions, use the envelope structure with high thermal insulation and air tightness performance as well as efficient fresh air heat recovery technology to minimize the heating and cooling demand of buildings, and make full use of renewable energy to provide comfortable indoor environment with less energy consumption. As a key part of the ultra-low energy consumption building technology system, the external wall heat transfer coefficient K value is much higher than the external wall heat transfer coefficient required by the current ordinary energy-saving buildings in China. In order to achieve the thermal insulation performance required by the ultra-low energy consumption buildings, higher requirements are put forward for the thermal insulation materials and external thermal insulation system of building envelope. In this research, a new type of thermal insulation material for external wall of buildings which combines rigid polyurethane and rock wool is developed, and its application technology in ultra-low energy consumption building external wall thermal insulation system is also studied.