How to install polyurethane (PU) roof panels?

Installing PU roof sandwich panels requires following a series of steps to ensure their stability, safety, and effectiveness. The following are detailed installation steps:

1. Construction preparation

Material preparation: Ensure that the required PU roof sandwich panels, steel structures (including main beams, secondary beams, columns, etc.), bolts, sealants, brackets, etc. are fully prepared and meet the design requirements and quality standards.

Tool preparation: Prepare lifting equipment, handheld tools, power connection devices, scaffolding, and other necessary construction tools, and ensure their safety and reliability.

On site preparation: Clean the installation area to ensure that the ground is flat and free of debris. If the ground is uneven, it needs to be leveled. At the same time, check whether the pre embedded parts and connectors such as door and window openings, fire ladders, and downspouts have been installed, and leave gaps as required.

2. Steel structure installation

Install steel structures according to the design drawings, including main beams, secondary beams, columns, etc. Ensure that the steel structure is flat and stable, with tight and secure connections.

After installation, professional engineers will conduct acceptance and confirm that there are no safety hazards before proceeding with subsequent construction.

3. Install the bracket

Install corresponding brackets on the steel structure to support the sandwich panel. The installation position and spacing of the bracket should be in accordance with the design requirements to ensure uniform distribution and reasonable load-bearing capacity.

4. Fixed sandwich panel

Place the PU roof sandwich panels on the bracket in the predetermined order. Pay attention to the arrangement direction and overlapping method of the boards to ensure overall aesthetics and stability.

Secure the sandwich panel to the bracket using bolts. The bolts should be installed tightly but not too tightly to avoid damaging the sandwich panel or affecting its load-bearing capacity.

5. Seam treatment

The joints between sandwich panels need to be sealed with polyurethane sealant to ensure waterproofing and insulation performance. Apply sealant evenly to the joint and press the sandwich panel tightly to fully fill the sealant.

6. Installation of auxiliary facilities

After installing the main structure, proceed with the installation of supporting facilities such as doors, windows, pipelines, etc. Be careful not to damage the installed sandwich panels.

7. Acceptance and maintenance

After installation, the engineering and technical personnel will conduct acceptance inspection to check the overall installation quality and effectiveness.

Regularly maintain and upkeep the roof sandwich panels to ensure their long-term good performance and service life.

Matters needing attention

• During the installation process, safety operating procedures should be followed and safety protective equipment should be worn.
• Avoid construction under adverse weather conditions such as strong winds, rain, and snow to ensure construction quality and safety.
• Strictly follow the design drawings and construction specifications for construction, ensuring that every step meets the requirements.

By following the above steps and precautions, the installation quality and effectiveness of PU roof sandwich panels can be ensured.