Can Prefabricated Houses Be Lived In Now?

Prefabricated houses can be lived in now.

I. Design Service Life According to the current national standard 'Unified Standard for Reliability Design of Building Structures' (GB50068 - 2018), the design service life of ordinary buildings and structures is 50 years, and prefabricated panel buildings also follow this regulation. This means that from a design perspective, prefabricated houses have a 50-year service life foundation under normal use and maintenance conditions. However, this is not absolute, as the actual service life can be affected by multiple factors.

II. House Safety Appraisal Prefabricated panel buildings have disadvantages such as being prone to cracking at joints and having relatively poor seismic performance. Therefore, a professional house safety appraisal is required to determine the safety level of the house. The appraisal results fall into three categories:

• If the house only has minor cracks and water leakage problems, which are relatively easy to handle, its service life can be extended, and it can continue to be lived in through daily maintenance measures such as repairing cracks and doing a good job of waterproofing.
• When there are local hidden dangers in the house, such as loosening of some structures, but after professional reinforcement treatment, the structural stability and safety of the house can be restored to meet the living requirements, then it can still be lived in after reinforcement.
• Only when the house structure is severely damaged, such as large-scale collapse of the main structure or unrepairable serious cracks, should living be stopped and the house be demolished to ensure the safety of the occupants.

III. Construction Quality and Maintenance What truly determines the safety of prefabricated houses is the initial construction quality and the maintenance over the years, rather than the years on the calendar. If high-quality materials are used during construction, the construction process is standardized, and regular maintenance is carried out during subsequent use, with small problems being dealt with in a timely manner, then the house can still be safely lived in even if it is relatively old. Conversely, if the construction quality is poor and maintenance is neglected in the later stage, even if the house is relatively new, there may be safety hazards that affect living.