Prefabricated Parts for Flat House Roofs in Beijing
Prefabricated parts for flat house roofs in Beijing mainly include types such as steel-framed lightweight roof panels, with prices varying among different manufacturers and specifications. Moreover, the construction of prefabricated panel houses has been banned in urban areas, and dilapidated rural houses must be demolished.
Types and Prices of Prefabricated Parts
There is a wide variety of prefabricated parts for flat house roofs in Beijing, with steel-framed lightweight roof panels being a common type. The prices of prefabricated parts produced by different manufacturers vary significantly due to factors such as specifications and materials. For example, Langfang Xiangle Building Materials Co., Ltd. offers Beijing composite steel-framed lightweight roof panels, grid panels, explosion-relief wall panels, and expanded stone panels, with delivery within 48 hours at a price of ¥140.0. Zhuozhou Penglei Trading Co., Ltd. provides factory-prefabricated civil house roof slabs, steel-framed concrete lightweight slabs, and prefabricated cement hollow slabs, also with 48-hour delivery, but at a price of ¥480.0. Hebei Yudai New Building Materials Co., Ltd. offers steel-framed lightweight panels for loft floors in Shunyi District, Beijing, and lightweight mezzanine panels for warehouse use, with 48-hour delivery at a price of ¥130.0. When choosing, consumers need to consider factors such as the quality and performance of the prefabricated parts based on their own needs and budget.
Case of Prefabricated House Collapse
A prefabricated house collapse incident occurred in Shuguangli, Chaoyang District, Beijing. The house was a self-built structure built in the 1980s and was used as an elderly activity center. The roof was made of prefabricated panels. At around 9:00 PM on July 22, 20XX, the house collapsed, with three prefabricated panels falling to the ground and the floor covered in black sand and gravel. About five days before the incident, black dust was found falling from the roof inside the house, and the house beams were suspected of bending. After several days of rain, the accumulated water on the roof soaked the structure, ultimately leading to the collapse. This case serves as a warning that prefabricated houses pose significant safety risks if not properly maintained.
Policies on Prefabricated Houses
Currently, the construction of prefabricated panel houses has been banned in urban areas. In 2023, relevant national authorities issued a document explicitly requiring the prohibition of "the construction of new, renovated, and expanded buildings that do not comply with current standards, such as prefabricated panel houses, within urban construction land areas." Subsequently, various regions have begun to gradually clear prefabricated buildings within urban areas. As for existing prefabricated houses in rural areas, there is currently no news of a blanket demolition. However, if a house has become dilapidated, it must be demolished, while those in good condition do not need to worry about demolition.
