Introduction
Even high-quality screws can fail if installed incorrectly. Proper installation is just as important as product quality.
Top Installation Mistakes
- Over-Tightening
Too much torque can:
- Crush the washer
- Damage EPDM sealing
Result: Water leakage
- Under-Tightening
If the screw is too loose:
- Washer not compressed
- Gap remains
Result: Water ingress
- Incorrect Angle Installation
Installing screws at an angle:
- Reduces holding strength
- Causes uneven sealing
- Using Wrong Tools
Using non-magnetic or incorrect size adapters:
- Poor alignment
- Slipping during installation
Best Practices
✔ Use correct driver (Hex 5/16″ or PH2+)
✔ Maintain vertical installation angle
✔ Apply proper torque
✔ Ensure clean drilling (no debris under washer)
Conclusion
Proper installation ensures maximum performance of roofing screws. Training installers and using the right tools can significantly reduce failure rates.