Group 1 - The concept of the "fifth facade" refers to the rooftops of buildings, which significantly influence the overall urban landscape from a bird's-eye view [1] - More than 30 rooftop terraces along Beijing's central axis were opened to the public this summer, allowing citizens and tourists to enjoy various activities, enhancing urban vibrancy [1] - The shift in urban development from large-scale expansion to improving existing spaces highlights the potential of underutilized rooftop areas, particularly in cities like Shenzhen, which has approximately 200 million square meters of rooftop space available for development [1] Group 2 - The "fifth facade" can integrate good ecological environments into urban settings, as seen in Wuhan's commercial spaces that transformed rooftops into gardens, attracting visitors [2] - In Guangzhou, the Baiyun International Conference Center installed around 40,000 square meters of photovoltaic panels on its rooftop, generating over 4 million kilowatt-hours of electricity in the past three years and reducing carbon emissions by over 3,000 tons [2] - Rooftops are evolving from mere building covers to vibrant spaces that foster community engagement and cater to diverse consumer needs, enhancing the livability of urban areas [2] Group 3 - The well-planned "fifth facade" offers aesthetic, cultural, lifestyle, and economic value, making it a valuable asset for cities that require scientific planning and meticulous regulation [3] - Cities like Wenzhou are strategically zoning rooftop areas into distinct categories to avoid a one-size-fits-all approach, ensuring targeted development [3] - The central urban work conference emphasizes the importance of creating comfortable and convenient livable cities, with the "fifth facade" contributing to urban vitality through improved design and management [3]

Group 1 - The concept of the "fifth facade" refers to the rooftops of buildings, which significantly influence the overall urban landscape from a bird's-eye view [1] - More than 30 rooftop terraces along Beijing's central axis have been opened to the public, allowing citizens and tourists to enjoy various activities such as tea tasting, dining, and attending performances [1] - The transition of urban development from large-scale expansion to improving existing spaces highlights the potential of underutilized rooftops, with Shenzhen alone having approximately 200 million square meters of rooftop space available for development [1] Group 2 - The "fifth facade" plays a crucial role in integrating natural beauty into urban environments, as seen in Wuhan's commercial center, which transformed its rooftop into a flower garden, attracting many visitors [2] - Guangzhou's Baiyun International Conference Center has installed around 40,000 square meters of photovoltaic panels on its rooftop, generating over 4 million kilowatt-hours of electricity in the past three years and reducing carbon emissions by over 3,000 tons [2] - Rooftops are evolving from mere building covers to vibrant spaces that foster community engagement and enhance urban livability, as demonstrated by various initiatives in Shanghai and Shenzhen [2][3] Group 3 - The well-planned "fifth facade" encompasses aesthetic, cultural, lifestyle, and economic values, making it a valuable asset for cities that requires careful planning and regulation [3] - Cities like Wenzhou are categorizing rooftop development areas into distinct zones to avoid a one-size-fits-all approach and ensure targeted planning [3] - The central urban work conference emphasizes the importance of creating comfortable and convenient livable cities, which includes enhancing rooftop aesthetics and building value [3]

Core Insights - The concept of the "fifth facade" refers to the rooftops of buildings, which significantly influence the overall urban landscape from a bird's-eye view [1][2] - There is a shift in urban development from large-scale expansion to enhancing existing urban spaces, with the "fifth facade" being a key area for potential development [1][3] Group 1: Urban Development and Utilization - Over 30 rooftop terraces along Beijing's central axis have been opened to the public, offering various activities such as tea tasting, dining, and sports [1] - In Shenzhen, there is approximately 200 million square meters of rooftop space available, indicating substantial potential for development and utilization [1] - The transformation of rooftops into vibrant spaces is seen as a response to citizens' desires for improved living conditions and urban experiences [1][2] Group 2: Ecological and Community Benefits - Rooftops can enhance urban ecology, as demonstrated by Wuhan's commercial center, which has created a rooftop garden attracting visitors [2] - Guangzhou's Baiyun International Conference Center has installed around 40,000 square meters of photovoltaic panels on its roof, generating over 4 million kilowatt-hours of electricity in the past three years and reducing carbon emissions by over 3,000 tons [2] - Rooftops are becoming new community spaces, fostering social connections and enhancing the livability of urban areas through various activities and events [2][3] Group 3: Planning and Regulation - Effective planning and regulation are essential for maximizing the aesthetic, cultural, and economic value of the "fifth facade" [3] - Wenzhou has categorized rooftop development areas into distinct zones to avoid a one-size-fits-all approach, ensuring targeted and effective planning [3] - The central urban work conference emphasizes the importance of creating comfortable and convenient livable cities, which includes improving rooftop aesthetics and functionality [3]