Definition scope of major, medium and minor repairs of property

The following is for reference, and some provisions may be revised.

Overhaul project

Refers to the serious damage and failure of the main structure of the building, and the original use value is restored after repair work. The overhaul project needs to move or replace some major components, and the repair scope is large and concentrated. It has integrity and needs the whole house to be demolished. Less maintenance times, long interval and high cost, but it can't be used normally without maintenance. After the overhaul, the house must be basically in good condition. The scope and standards of house repair stipulate that the overhaul project is mainly applicable to severely damaged houses. When building is overhauled, attention should be paid to the design and construction according to the seismic design code and seismic appraisal and reinforcement standards as far as possible, and it should be combined with termite control, fire prevention, flood control and wind protection, and lightning protection. Improve living conditions while ensuring living safety and saving financial and material resources. The one-time cost of overhaul project exceeds 25% of the new construction cost of similar structure of the building. Regulations on Construction Management of House Repair Project, Regulations on Technical Management of House Repair Project and Standards for Quality Inspection and Evaluation of House Repair Project are the legal basis for construction management and completion of overhaul project.

Medium repair project

Refers to the project that needs to affect or dismantle a small number of main components, but maintains the original scale and structure of the house. Medium repair works are mainly suitable for general damaged houses. Repairing the damaged part can restore the original function of the house. It has the characteristics of many repair times, short repair interval and low repair cost. For example, repairing the leaking part of the house in a large area and removing a local wall can only maintain normal use, but it cannot eliminate the damage. The one-time cost of the medium repair project is lower than 20% of the new construction cost of the similar structure of the building; After medium repair, more than 70% of the houses must meet the requirements of basic integrity or integrity. The construction management and quality acceptance of medium repair works shall be implemented in accordance with the Regulations on Construction Management of House Repair Works, the Regulations on Technical Management of House Repair Works and the Standards for Quality Inspection and Evaluation of House Repair Works.

Minor repair works

Refers to the daily maintenance project for the purpose of repairing minor damage in time and maintaining the original damage level of the house. It is characterized by simple and scattered maintenance projects. Large quantity and small area are called "zero repair" or "broken repair", such as door and window maintenance. The average annual comprehensive cost of minor repairs is below 65438+ 0% of the current cost of the managed house.