What is the correct method for installing overlapping crossmember web patches?

Installing overlapping crossmember web patches correctly is crucial for maintaining the structural integrity of the dry van. The optimal method involves using a full-length patch along with at least 25mm of the old crossmember. This ensures that the new material adequately supports the existing structural framework, distributing stress and reinforcing the joint effectively.

A full-length patch provides more surface area for bonding and helps to eliminate potential weak points that shorter patches might introduce. The requirement of at least 25mm of the old crossmember is essential to ensure that there is enough overlap to properly transfer loads and maintain the strength of the crossmember assembly. This method adheres to best practices in repair work, ensuring durability and adherence to safety standards.

Other methods, such as using short patches or attaching minimal amounts of the old crossmember, do not offer the same level of support and could lead to structural failures over time due to inadequate load distribution and weak joints.