A sagging roof is definitely not a good sign. Often, it results from extensive roof damage. Wavy or sagging roofs indicate missing shingles, damaged flashing and other roof issues. However, sometimes roof sagging is caused by certain factors that are not roof-related.

Hiring a professional roofer is the best way to determine the culprit behind a sagging roof. But to give you an idea of what other things could cause this issue, 4U Roofing lists some of them in this post.
Poor Foundation
When the solid layers under the foundation of your home start to shrink, it causes the foundation to drop. This soil movement affects your roof too, causing it to sag or become wavy.
Mould and Mildew
Check for mold and mildew growth in our home. This is generally caused by moisture or humidity problems and later leads to more serious issues, like wood rot, roof sagging and more. Address the issue at the source so that you can avoid its recurrence.
Materials
Using undersized or low-quality materials can also contribute to roof sagging. You can have your home’s building materials assessed to identify the areas that need improvement.
Termites and Carpenter Ant Infestation
If your attic is infested by termites or carpenter ants, the wood rafters and trusses become prone to damage. If not treated immediately, the material becomes weaker and deformed. In extreme cases, it can even collapse. Make sure to call experts so you can deal with the problem effectively.
When looking for a contractor to help you restore your roof, you must hire one that offers superior products and services. At 4U Roofing, our seasoned and skilled roofers will help you determine the cause of your sagging roof and provide appropriate solutions to the problem. Let us know how we can assist you by calling us at (251) 235-2222 or filling out our contact form.