The national standards related to building energy efficiency put forward new and higher requirements for the building sunshade industry. Building acceptance must meet the following standards and specifications:

一、GB50189-2015 in Design Standard for Energy Efficiency of Public Buildings

Sunshade measures shall be taken for exterior windows (including transparent curtain walls) facing buildings in hot summer and warm winter, hot summer and cold winter, and moderate areas.

The buildings in cold areas should adopt sunshade measures. When setting the external window, the following requirements shall be met:

(1) Movable external sunshade should be set in the east-west direction, and horizontal external sunshade should be set in the south direction;

(2) The sun shading device outside the building should give consideration to ventilation and winter sunshine.

二、Evaluation Standard for Green Buildings GB/T50378-2014

Take adjustable sunshade measures to reduce solar radiation heat gain in summer, and the total score is 12.

In the transparent parts of exterior windows and curtain walls, the proportion of areas with controllable sunshade adjustment measures reaches 25%; 6 points; If it reaches 50%, 12 points will be obtained.

三、Design Standard for Energy Efficiency of Residential Buildings in Hot Summer and Warm Winter Areas (JGJ75-2012)

The east and west outward windows of residential buildings must take external shading measures, and the external shading coefficient SC of the building shall not be greater than 0.8

According to the requirements of the standard：

The form and application of movable building shading is imperative!

(Data source network)

Modern buildings are an important part of energy consumption, and building energy conservation has become a very high social concern. With the continuous improvement of national policies and the continuous improvement of energy conservation requirements for civil and industrial buildings, it is required that doors and windows (accounting for more than 60% of the total building energy consumption) should be sunshaded and insulated in summer and heated and insulated in winter.

1.Heat transfer coefficient K value

①The whole window of energy door and window shall be less than 2.5w/(m2•k);

②Low energy consumption doors and windows shall be less than 2.0w/(m2•k);

③Ultra low energy consumption doors and windows shall be less than 1.5w/(m2•k);

④Near zero energy consumption doors and windows shall be less than 1.3w/(m2•k);

⑤Zero energy consumption doors and windows shall be less than 0.8w/(m2•k).

2.The shading coefficient SC shall be less than 0.3,

3.The visible light transmittance shall be greater than 0.65,

After repeated testing and verification, SDLD's built-in louver insulating glass can meet the three rigidity index requirements of the above national standards for building energy-saving doors and windows. It has also obtained the CABR energy-saving product certification of China Academy of Building Sciences, met the requirements of the Ministry of Housing and Urban Rural Development of the People's Republic of China that "energy-saving doors and windows should be integrated with sunshade products", won the "National Science and Technology Achievement Promotion Project in the Construction Industry" awarded by the Ministry of Housing and Urban Rural Development, and has been fully recognized by market and industry experts, and has gradually occupied a leading position in the domestic and foreign sunshade field.