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GB 50189-2015 第3.4.2条 Design Standard for Energy Efficiency of Public Buildings

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GB 50189-2015 第3.4.2条

| **** | **Air tightness of transparent curtain walls**: The air tightness grade of transparent curtain walls shall not be lower than Grade 3 specified in the national standard GB/T 21086 *Building Curtain Walls* (i.e., for openable parts q ≤ 2.5 m³/(m·h), and for the curtain wall as a whole q ≤ 1.5 m³/(m²·h)). |

Other clauses of this standard

GB 50189-2015 第1.0.1条Design standard for energy efficiency of public buildings
GB 50189-2015 第1.0.2条Design Standard for Energy Efficiency of Public Buildings
GB 50189-2015 第1.0.3条Design standard for energy efficiency of public buildings
GB 50189-2015 第1.0.4条Design Standard for Energy Efficiency of Public Buildings
GB 50189-2015 第1.0.5条Design standard for energy efficiency of public buildings
GB 50189-2015 第1.0.6条Design Standard for Energy Efficiency of Public Buildings
GB 50189-2015 第2.0.1条Design Standard for Energy Efficiency of Public Buildings
GB 50189-2015 第2.0.2条Design standard for energy efficiency of public buildings
GB 50189-2015 第2.0.3条Design standard for energy efficiency of public buildings
GB 50189-2015 第2.0.4条Design standard for energy efficiency of public buildings
GB 50189-2015 第2.0.5条Design standard for energy efficiency of public buildings
GB 50189-2015 第2.0.6条Design Standard for Energy Efficiency of Public Buildings

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