Requirements for Prefabricated Partition Walls in Houses

Prefabricated partition walls in houses must meet requirements for structural safety, physical properties, construction techniques, cost-effectiveness, and other specifications, as detailed below:

Structural Safety:
Partition walls must possess sufficient strength and stability, withstanding self-weight, loads, and external forces such as wind and earthquakes through reasonable material selection, cross-sectional design, and reliable connections. It is strictly prohibited to remove or modify load-bearing partition walls arbitrarily. If modifications are necessary, the original design unit or a qualified organization must be commissioned to propose a plan and carry out the construction to ensure the overall seismic resistance and safety of the building.

Physical Properties:

1. Thermal Performance: Insulation measures should be taken according to climatic conditions to ensure indoor thermal comfort.
2. Sound Insulation: Noise transmission should be controlled through material thickness, density, or composite structures. Partition walls between residential units must achieve a sound insulation level of 50 decibels, while special venues such as conference rooms should reach 55 decibels.
3. Fire and Water Resistance: The fire resistance time of ordinary partition walls should be increased to 1.5 hours, and core tube firewalls should reach 3 hours. Pipes passing through walls should be sealed with elastic fire-resistant sealant, with a blocking depth of no less than one-third of the wall thickness. Waterproofing should be carried out in areas such as bathrooms.
4. Moisture and Condensation Prevention: Horizontal or vertical moisture barriers should be installed according to the environment to prevent wall damage from moisture.

Construction Techniques:

1. Adapt to the characteristics of factory prefabrication and on-site assembly. For example, the thickness of a single cement fiber decorative board is approximately 8-9 centimeters, and the total thickness after construction can be reduced to within 12 centimeters.
2. Strict construction accuracy requirements: The allowable deviation for wall verticality has been adjusted from 5 millimeters to 3 millimeters, and the wall surface flatness error must not exceed 2 millimeters.

Cost-Effectiveness:
Under the premise of meeting functional requirements, costs should be reasonably controlled to avoid excessive investment.

Other Specifications:

1. Materials must comply with national standards, such as bricks and blocks meeting strength and durability requirements.
2. Comply with local urban and rural planning, including height, style, and materials. Historical and cultural villages or protected areas must maintain a consistent appearance; applications for permits must be made in advance in areas with strict planning management.
3. Do not obstruct ventilation, lighting, or sunlight for adjacent buildings, avoid excessive height or proximity in construction; ensure the normal operation of drainage systems and do not impede drainage; It is strictly prohibited to encroach on collective land such as roads and public passageways to safeguard passage and usage rights.