Earlier this year, the BEIJING local Building and Environment Departments had published the new “Design Standard for Ultra-low Energy Residential Building (DB11/T1665-2019)”, in order to implement relevant laws and regulations on ENERGY-SAVING and ENVIRONMENT PROTECTION, to lower residential buildings’ consumption, to improve buildings’ quality, and to standardize the design of ultra-low energy residential building.
In this “Standard”, it requires the building to have 1) Good insulation, 2) G
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