How to Install Prefabricated House Panels

The installation of prefabricated house panels should be carried out in accordance with specific component types and design requirements. Generally, the following process can be referred to for operation:

1. Surveying and Setting Out
Surveying and setting out is a fundamental step in the installation process. It involves releasing the positioning lines for exterior wall panels based on design drawings to clarify the specific positions of the prefabricated panels within the building structure. In some scenarios, elevation control lines also need to be set up to ensure that the height of the prefabricated panels after installation meets design requirements. This step requires the use of tools such as laser levels or spirit levels to ensure positioning accuracy and avoid deviations in subsequent installations.

2. Rebar Positioning and Correction
Before installing the prefabricated panels, the connecting rebars need to be processed. If the reserved rebars are misaligned, rebar positioning plates should be used to composite the connecting rebars, or special rebar positioning plates should be used to correct the positioning and perpendicularity of the reserved rebars. The purpose of this step is to ensure reliable connection between the prefabricated panels and the rebars of the main structure, avoiding structural safety hazards caused by rebar misalignment.

3. Shim Leveling and Elevation Verification
Place adjustable shims at the installation positions to adjust the flatness of the bottom of the prefabricated panels. Subsequently, use a spirit level to verify the elevation, ensuring that the levelness of the prefabricated panels after installation meets design requirements. Shim leveling is crucial for ensuring the installation quality of the prefabricated panels. If the elevation deviation is too large, it may lead to quality issues in subsequent processes (such as concrete pouring).

4. Lifting and Installation
Use hooks or tower cranes to slowly lift the prefabricated panels to the designated positions. During the lifting process, maintain a constant speed to avoid violent shaking that could cause collisions or damage to the prefabricated panels. A dedicated person should be in charge of directing during the lifting process to ensure accurate positioning of the prefabricated panels and reduce the number of adjustments needed.

5. Support and Adjustment
After the prefabricated panels are in place, install temporary positioning and adjusting components on the lower layer to fix the positions of the prefabricated panels. In some scenarios, rubber-plastic cotton strips may also need to be pasted (to prevent grout leakage) or mortar bedding and compartmentalization may be required (to ensure the compactness of concrete pouring). The purpose of this step is to ensure that the prefabricated panels remain stable before concrete pouring, avoiding displacement or tilting.

6. Concrete Pouring (if required)
If the prefabricated panels are exterior wall panels or need to be connected to the main structure, subsequent concrete pouring may be involved. Before pouring, check whether the gaps between the prefabricated panels and the main structure are tight. During the pouring process, vibrate the concrete to ensure compactness and connection strength. The concrete strength should meet design requirements, and disturbance should be avoided during the curing period.

Precautions: The installation details of different types of prefabricated panels (such as interior wall panels, exterior wall panels, bay windows, etc.) vary. Actual construction should be carried out in accordance with specific component types and design requirements. For example, bay window prefabricated panels require additional treatment of waterproofing nodes, and exterior wall panels require special attention to controlling perpendicularity. Before installation, carefully read the construction drawings and have professional technicians provide on-site guidance.