Dry hanging is a construction method commonly used for precast concrete panels, differing from the traditional wet adhesive method. The process of dry hanging construction is as follows:

1. Preparation: Before starting construction, prepare the precast concrete panels and the necessary metal support system. Ensure the base wall structure of the construction site is even and clean.

2. Install Metal Supports: Begin by installing the metal support system on the base wall. These supports will hold the precast concrete panels. The installation of supports should adhere to design requirements, ensuring they are level and sturdy.

3. Attach Fasteners: Install fasteners onto the metal supports. These fasteners will match the pre-made holes in the concrete panels, enabling secure fixing.

4. Install Precast Panels: Connect the precast concrete panels to the fasteners, often using a hanging or locking mechanism. Ensure even gaps between panels and maintain vertical and horizontal alignment.

5. Secure Panels: Make sure each concrete panel is securely fixed to the fasteners, usually employing bolts or appropriate fastening devices.

6. Inspect and Adjust: After installation, inspect the entire system to ensure each panel is correctly positioned and aligned.

7. Sealing: Depending on requirements, fill the gaps between panels with sealing material to prevent water infiltration and enhance the visual appearance.

Why Dry Hanging Instead of Wet Adhesive?

Dry hanging offers several advantages over wet adhesive methods:

• Construction Speed: Dry hanging eliminates the need to wait for bonding materials to dry, resulting in faster construction.
• Unrestricted Conditions: Dry hanging is suitable for various climates and is not limited by low temperatures or moisture.
• Ease of Maintenance: Precast panels in a dry hanging system can be individually removed, making maintenance and replacement more convenient.
• Waterproofing: Dry hanging allows for ventilation gaps between panels, contributing to waterproofing and ventilation.

Construction Considerations:

• Design Specifications: Before construction, carefully review design specifications to ensure that the dimensions and installation methods of supports and panels comply with requirements.
• Safety Measures: During construction, ensure that workers adhere to safety protocols and wear necessary personal protective equipment.
• Quality Checks: Conduct quality checks during the installation process to ensure each step is carried out as required, avoiding future issues.
• Environmental Protection: Pay attention to environmental protection at the construction site, preventing the generation of dust, noise, and other pollutants.