Correct installation is essential for the long-term performance of photovoltaic roof panels and insulated sandwich panels. The following general guidelines are provided to support steel structure contractors and installation teams. Always follow project drawings and local safety regulations.
Check panel specifications, quantities and accessories against the packing list.
Store panels on level supports, protected from rain and direct sunlight.
Use soft straps and spreader bars when lifting bundles; avoid damaging panel edges.
Plan lifting routes and installation sequence to minimise double-handling.
Confirm purlin alignment, spacing and roof slope.
Start from the eave side and work upwards, installing panels in the prevailing wind direction.
Use recommended self-drilling screws with sealing washers; do not overtighten.
Apply sealant and foam closures where required at eaves, ridges and end laps.
For photovoltaic roof panels, coordinate cable routes, junction boxes and access walkways with the electrical contractor.
Set out base channels and check vertical alignment of supporting structure.
Install panels from corner to corner, checking plumb and level as you go.
Ensure joints are fully engaged; apply sealant or gaskets where specified.
Protect panel surfaces during installation to avoid scratches and dents.
For cold room panels, pay special attention to:
Vapour tightness of joints
Connection details at floors and ceilings
Integration of doors and penetrations
Follow local safety rules for work at height and lifting operations.
After installation, inspect all joints, fixings, flashings and sealant.
Remove metal swarf and debris from roof surfaces to avoid corrosion.
Prepare an as-built list of panel types and thicknesses for future maintenance.
These guidelines are general and may not cover every project detail. For specific installation drawings or recommendations for your project, contact Somei with your panel selection and structural layout.
Shenzhen Somei Building Material Co., Ltd. provides one-stop photovoltaic and insulated roof & wall panel solutions for steel structure factories, warehouses, and cold rooms in hot-climate markets.