Prefabricated House Installation Plan

The prefabricated house installation plan should be comprehensively planned from aspects such as project overview, construction preparation, construction techniques, quality control, and other requirements to ensure installation quality and safety.

I. Project Overview
Clarify the installation scope and design requirements, such as roof area, types of prefabricated components (roof panels, wall panels, etc.), slope, waterproofing grade, and performance needs (waterproofing, thermal insulation, heat insulation). For example, a residential community roof project uses prefabricated roof panels, designed as a 30° pitched roof with a waterproofing grade of II, requiring energy efficiency and durability.

II. Construction Preparation

1. Technical Preparation: Familiarize with design drawings and technical parameters, learn standard specifications, and organize technical briefings; deepen design by verifying the locations of reserved holes and embedded parts, prepare specialized plans and have them approved through论证 (demonstration); use BIM technology to simulate lifting operations, optimize sequences, and provide briefings.
2. Material Preparation: Prefabricated components (roof panels, wall panels) must be inspected individually, verifying certificates, strength reports, and appearance quality; supporting materials such as grout must meet strength grade requirements (e.g., C40); waterproofing, thermal insulation, and heat insulation materials must comply with national standards.
3. Personnel Preparation: Form a professional team (tile layers, electricians, etc.), clarify responsibilities, and conduct safety and skill training.
4. Equipment Preparation: Equip with lifting equipment (tower cranes, winches), construction tools (cutting machines, drills), and testing equipment (levels, waterproofing testers).

III. Construction Techniques

1. Roof Installation Process: Base treatment → waterproofing layer → thermal insulation layer → heat insulation layer → installation of prefabricated roof panels → finishing treatment → acceptance.
2. Prefabricated Wall Panel Installation Process: Transfer control axes → mark lines on the floor → measure elevations → install panels one by one (place spacers → lift into position → temporarily secure → align → install anchor bars) → construct cast-in-place structures → cure concrete.
3. Construction Key Points: The base must be flat and crack-free; the waterproofing layer must achieve a 100% pass rate after testing; installation of prefabricated components must control elevation and perpendicularity (e.g., wall panel axis deviation ≤ 3mm, perpendicularity deviation ≤ 4mm); finishing treatment must ensure tightness.

IV. Quality Control

1. Material Control: Strictly inspect incoming materials, and seal and replace non-conforming items.
2. Installation Accuracy Control: Ensure accurate component installation positions through positioning marks, BIM simulations, and laser calibration techniques.

V. Other Requirements

1. Safety Objectives: Eliminate accidents such as falls from heights and object strikes, with 100% certification rate for special operations personnel.
2. Progress Objectives: Install single-story wall panels in ≤ 8 hours, meeting a progress of 5 days per story for the main structure.
3. Environmental Objectives: Solid waste emissions ≤ 0.2 tons per story, noise levels ≤ 70 dB during the day and ≤ 55 dB at night.