Renovation of Prefabricated Slab Houses in Xuchang City

The following methods can be referred to for the renovation of prefabricated slab houses in Xuchang City:

Roof Reinforcement of Prefabricated Slabs

• Floor and Roof Reinforcement: If the prefabricated slabs are pulled apart or damaged, use cement mortar to refill the gaps and restore structural integrity. If the roof shifts, use iron pipes for support or add brick piers to enhance support strength. For brick-wood structure houses, use "clout nails" to strengthen the connection between the wooden roof trusses and purlins, use backing plates to reinforce the connection between the gable walls and purlins, and add diagonal braces between wooden columns to improve overall stability. If the roof is tilted, use professional methods to straighten and fix it.
• Reinforcement of Protruding Parts of Buildings: For parts such as chimneys, parapet walls, high door faces, water tank rooms on the roof, and staircases that are easily affected by external forces, take measures such as installing vertical tie bars and removing unnecessary attachments to reduce the risk of damage under earthquake or external forces.
• Wall Reinforcement: Wall damage mainly manifests as cracking and leaning. Reinforcement methods should be selected according to the degree of damage. For load-bearing walls, methods such as brick removal and gap filling, steel bar reinforcement, or setting up "wall cables" can be used to enhance load-bearing capacity. For non-load-bearing walls, buttress piers can be used for reinforcement to improve lateral resistance.

Earthquake Resistance Reinforcement of Prefabricated Slab Houses

• Angle Steel and Steel Beam Reinforcement: By installing angle steel or steel beams at the joints of prefabricated slabs or key nodes, a frame structure is formed to enhance the overall rigidity and earthquake resistance of the house.
• Steel Wire Mesh Polymer Mortar: Lay steel wire mesh on the surface of the prefabricated slabs and apply polymer mortar to enhance the bonding strength between the slab body and the base layer, preventing cracking and detachment.
• Reconstruction of Cast-in-Place Slabs: If the prefabricated slabs are severely aged or have obvious structural defects, the original prefabricated slabs can be removed and cast-in-place slabs can be poured again to fundamentally improve the safety and durability of the house.

Subsidy Policies for Old House Renovation and Partial Renovation

From the date of issuance of the detailed rules until December 31, 2025, Xuchang City will provide subsidies for the purchase of 17 types of items and materials such as facing tiles, wooden floors, and sanitary ware when renovating residential self-use houses that were legally constructed and delivered for use before June 30, 2024 (inclusive). Subsidy Method: For individual consumers who make direct purchases, a subsidy of 20% of the purchase cost for each category will be provided, with a maximum subsidy of 2,000 yuan per category and a maximum subsidy of 20,000 yuan per house. For those who entrust renovation companies for renovation, a subsidy of 20% of the total contract amount will be provided, with a maximum subsidy of 20,000 yuan per house.