Canada
Every seam, joint, and mechanical connection represents a location where different materials meet. In commercial truck bodies, these areas experience repeated vibration, thermal expansion, weather exposure, and loading stresses throughout the vehicle’s life.
Properly engineered seams help maintain structural integrity while preventing water intrusion into the cargo area. Poorly maintained seams can eventually contribute to leaks, corrosion around fasteners, insulation degradation in refrigerated bodies, or cosmetic deterioration.
Modern truck body designs often seek to reduce unnecessary seams where practical. Composite panel construction, for example, allows larger wall sections to be manufactured as single assemblies, decreasing the number of exterior joints that require sealing and long-term maintenance.
Regardless of construction type, regular inspection of seals, fasteners, roof joints, and door openings helps preserve body integrity and prevent minor issues from becoming larger structural repairs.
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