The answer to 'roof repair sagging' is that a sagging roof is typically caused by structural issues or excessive weight on the roof. Common symptoms include uneven roof lines, cracking or splitting of roof materials, and interior ceiling cracks or drywall damage. Solutions may involve reinforcing the roof structure, replacing damaged framing, or redistributing weight on the roof.
If the sagging is minor, some DIY repairs like adding support beams or bracing may be possible. However, for more significant structural issues, it's best to call in a professional roofing contractor to assess the problem and provide the appropriate repair solution. Attempting major roof repairs without the proper expertise can be dangerous and lead to further damage.