Doors, windows, curtain wall energy-saving secrets-choose sealants and heat insulation strips
The thermal conductivity factors that affect energy-saving windows and doors are sealants and insulation strips. While actively researching the thermal insulation of doors, windows, and curtain wall structures, we must recognize that the development of new high-tech materials is an important foundation for building energy conservation. Only materials with excellent performance can ensure the long-term thermal insulation performance of the outer envelope. Therefore, ultra-high-performance building sealing and thermal insulation energy-saving materials have become an inevitable choice for the development of the industry.
At present, the competent construction department attaches great importance to and encourages the high-level thermal insulation treatment of the outer envelope structures of doors, windows, and curtain walls. In particular, after the promulgation and implementation of energy-saving design standards for public buildings GB50189, the height of mandatory standards for doors and windows is mentioned. At present, aluminum windows adopt methods such as insulating glass, low-reflection glass, and promotion of thermal insulation profiles, which greatly reduce the heat transfer coefficient of the entire window and improve its energy saving level. In winter, the window frame with heat insulation strip can reduce 1/3 of the heat lost through the window frame; in summer, the window frame with heat insulation strip can reduce the introduction of external heat more effectively.
Building sealing materials are important functional materials in the construction industry, especially curtain wall doors and windows. Building sealing materials represented by silicone structural adhesives have been widely used in the curtain wall doors and windows industry in the past decade. By 2008, all types of existing curtain walls in China The area has reached more than 200 million square meters, and billions of square meters of windows and doors are sealed with silicone glue. The sealing effect is directly related to the insulation performance of doors and windows. However, a large amount of silicone glue has not received due attention for a long time. Many curtain wall projects leaked soon after completion, not only damaging the interior decoration of the building, but also endangering the safety of the metal structure of the curtain wall, let alone energy saving. Silicone weathering adhesive was originally a good thermal insulation material, but became the culprit of energy consumption due to ventilation and water leakage.
In recent years, with the vigorous development of curtain wall technology, higher requirements have been put on the performance of structural adhesives and weather-resistant adhesives for curtain walls. Some Sichuan provinces are located in the 9 degree earthquake zone and were once listed as restricted areas of the curtain wall. Can you build curtain walls in areas with high earthquake intensity? Or our own experts have successfully developed ultra-high-performance structural adhesives and weather-resistant adhesives, which have both ultra-high strength and excellent resistance to displacement. After thorough theoretical calculations and practical engineering applications, Completely competent, making it possible to build curtain walls in areas with high earthquake intensity. Structural glue can ensure the safety of the curtain wall, while ultra-high-performance weather-resistant glue guarantees energy-saving sealing under large deformation and large displacement conditions.