The answer to 'roof repair sagging' is that a sagging roof is often caused by structural issues like damaged or deteriorated roof framing, weakened roof trusses, or excessive weight from snow or debris buildup. Symptoms include visible dips or depressions in the roof line, cracks in the ceiling, and doors/windows that no longer close properly. Solutions can range from reinforcing the roof structure to complete roof replacement, depending on the severity of the issue.
In many cases, roof sagging is a serious structural problem that requires professional evaluation and repair. DIY attempts to fix sagging roofs are generally not recommended, as improper repairs can make the problem worse and even create safety hazards. It's best to have a licensed and experienced roofing contractor inspect the roof and provide the appropriate solution.