The answer to 'roof decking sagging' is that it is often caused by structural issues or excessive weight on the roof. Sagging roof decking is a common problem that can lead to leaks, water damage, and even roof collapse if left unaddressed. Some common causes include old or damaged roof framing, water damage, and heavy snow or debris buildup.
Symptoms of sagging roof decking include visible dips or depressions in the roof, cracks or separations in the drywall or ceiling, and doors and windows that no longer fit properly. If you notice any of these signs, it's important to have a professional roofing contractor inspect the issue as soon as possible.