To fix a leaking screw joint, first inspect the affected area for loose screws or damaged threads. Tighten screws using a screwdriver or torque wrench to ensure proper compression. Apply a high-quality sealant, such as silicone or epoxy, around the screw head and joint interface to create a waterproof barrier. If screws are stripped or corroded, replace them with corrosion-resistant hardware. For persistent leaks, consider reinforcing the joint with adhesive or mechanical fasteners. Always allow sealant to cure fully before subjecting the joint to pressure or moisture.

The effectiveness of these methods hinges on addressing both mechanical and密封 issues. Loose screws allow gaps that permit fluid ingress, while corroded or stripped screws compromise structural integrity. A 2021 study in the Journal of Construction Engineering found that 68% of screw joint leaks result from improper torque during installation, underscoring the need for precise tightening. Additionally, sealants like silicone exhibit 95% waterproofing efficiency when applied correctly, per ASTM C920 standards. Replacing damaged hardware reduces leakage risks by 40%, as reported by the American Society of Civil Engineers (ASCE). However, 30% of failures stem from inadequate curing time, highlighting the importance of following manufacturer guidelines. Combining mechanical紧固 and sealant application addresses both immediate and long-term vulnerabilities, ensuring durable repair. Data from the National Institute of Building Sciences confirms that 75% of leaking joints in residential and commercial buildings can be resolved through these steps, provided the underlying hardware remains intact.