Sinhai’s polycarbonate roofing can be securely attached using a systematic approach to ensure durability and weatherproofing. For multiwall or solid sheets, start by preparing the structural frame (aluminum or steel) and ensuring it is level and corrosion-resistant. Use pre-drilled holes with a diameter 2–3mm larger than the fasteners to accommodate thermal expansion. Recommended fasteners include stainless steel self-tapping screws with EPDM washers to prevent water leakage. For corrugated roofing, align the sheets with the frame’s purlins and fix them at every other rib using hidden fasteners or clips. Sealant tapes or silicone can be applied along the edges and joints to enhance waterproofing. Sinhai’s PC H/U-type accessories are ideal for connecting sheets and frames, ensuring a secure and seamless installation. Always follow the manufacturer’s guidelines for spacing and torque to avoid over-tightening and damage. Contact us for detailed installation manuals and technical support.
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