Installing Sinhai’s polycarbonate roofing involves precise steps to maximize performance. Begin by selecting the appropriate sheet type (solid, multiwall, or corrugated) based on the project’s thermal and structural requirements. Ensure the roof slope is at least 5° for proper water drainage, especially for corrugated variants. Lay the first sheet along the eave, aligning it with the edge, and secure it using aluminum clips or screws with neoprene washers. Overlap subsequent sheets by 1–2 ribs for corrugated models or 50–100mm for flat multiwall sheets, using UV-stable sealants between layers. For large spans, use purlins spaced according to sheet thickness (e.g., 400–600mm for 10mm multiwall sheets). Avoid direct contact with copper or lead materials to prevent galvanic corrosion. Sinhai’s technical team offers on-site installation guidance and can provide custom-cut sheets for complex roof geometries. Contact us to schedule a consultation or request installation videos.
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