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Colored roofing screws (such as green, black, and white) are designed to match prepainted metal sheets or polycarbonate roofing panels. They provide a cohesive look and prevent corrosion while ensuring a tight seal on roofs and siding.
Self-drilling screws feature a drill-point tip that allows them to drill, tap, and fasten in a single operation. This eliminates the need for separate pre-drilling, saving time and labor costs during installation.
Polycarbonate screws are specifically designed to accommodate the thermal expansion and contraction of plastic panels. They often feature larger washers or specialized thread designs to prevent cracking or warping of the polycarbonate sheet over time.
These roofing screws are fitted with high-quality EPDM washers underneath the metal head. When driven correctly, the washer compresses to create an airtight and watertight seal against the roofing panel, preventing leaks.
It is generally not recommended to reuse old roofing screws. Over time, the EPDM rubber washers degrade due to UV exposure and weathering. Reusing old screws can compromise the seal, risking potential roof leaks.
