The installation of double-layer trapezoidal roofing sheets on steel structures requires precision and adherence to technical principles to ensure proper performance and long service life of the coating. Here, we describe in detail the main steps for installing these sheets on steel structures:
1. Preparation of the steel structure
Structure inspection and control: First of all, the steel structure must be thoroughly inspected. Make sure that the structure is built according to the drawings and technical specifications and does not have any structural defects or flaws.
Levelness and flatness: The structure must be perfectly level and flat so that the sheets can be placed correctly on it. Any unevenness or lack of levelness can lead to problems in installation and sealing.
Preparation of support profiles: Make sure that the support profiles (such as purlins or Z profiles) are installed correctly and with appropriate distances. These profiles play an important role in maintaining the sheets.
2. Planning and preparing the sheets
Checking drawings and sizes: Check the sheets according to the execution drawings and ensure that their sizes and dimensions meet the required specifications.
Cutting and preparing the sheets: If necessary, cut the sheets according to the execution drawings and exact sizes. Cutting should be done carefully so that the edges of the sheets are smooth and without problems.
Transferring and sorting the sheets: Transfer the sheets to the installation site in an orderly and safe manner and sort them in such a way that they are easy to access during installation.
3. Installing the sheets
Starting from a corner: The installation of the sheets is usually started from a corner and in a specific direction. The first sheet must be installed with precision and complete alignment.
Using special screws: Connect the sheets to the support profiles using special screws (usually head screws). These screws must be tightened with the appropriate distance and torque so that the sheets are well secured and there is no damage to the sheet or structure.
Proper overlap of sheets: When installing the sheets, make sure that there is a proper overlap between the sheets. This overlap must be observed based on the technical specifications of the sheets and the climatic conditions of the area. Proper overlap prevents water and moisture from penetrating.
Observing the distance between the screws: The distance between the screws must be determined based on the specifications of the sheets and the manufacturer’s recommendations. Observing the appropriate distance between the screws will distribute the load evenly and increase the strength of the connection.
4. Sealing and caulking
Use foam or special adhesives: Use foam or special sealing adhesives at the overlap of sheets and at the points of connection to the structure to prevent water and moisture penetration.
Checking the seams: After installation, carefully inspect all seams and connections and make sure they are properly sealed. Any open seams can lead to water penetration and damage to the structure.
5. Final inspection
Overall installation inspection: After installation is complete, carefully inspect the entire surface of the coating and make sure that the sheets are installed correctly and there are no problems.
Watertightness test: If necessary, test the sealing of the coating using water spray or similar methods to ensure that there is no water penetration.
Important points in installation
Safety: During installation, be sure to use appropriate safety equipment such as a helmet, gloves, and safety shoes.
Use the right tools: Use the right and quality tools to install the sheets so that the work is done more accurately and quickly.
Consult an expert: If you do not have enough experience in installing sheets, be sure to seek help from experienced professionals.
Conclusion
Installing double-layer trapezoidal roofing sheets on steel structures requires precision and adherence to technical principles. By following the steps mentioned and observing safety precautions, you can ensure the correct and quality installation of these sheets. This will increase the lifespan and efficiency of the coating.
