My Roof Sags

A sagging roof can come in one of a few classic forms each with its own cause.

My roof sags.

The fix here is to replace the thin sheathing with thicker sturdier sheathing. If the roof sags between the rafters or trusses the most likely cause is sheathing that s too thin for the area it covers. Straighten out your old house s sagging roof and get rid of those cracks in the wall with these easy to follow steps. To be safe you will want to have a professional residential roofing contractor or structural engineer take a look.

The expert should be able to inspect your roof and explain to you what the problem is. A sagging roof is not only an eyesore but it could also be dangerous for you and your family. Grab a flashlight and head up to your attic to inspect your roof rafters and decking specifically those where your roof is sagging. A ridge that droops in the middle forming that unintentional western design feature likely is due to undersized rafters and or missing or inadequate internal bracing rafter or collar ties.

Since roofs are designed to be straight a curved or sagging roof means that its structural integrity is insufficient and it may be a warning sign that your roof is headed for collapse. A sagging roof is one of the most serious signs of roof failure. Determine where the sag is in your roof in relation to your attic. From there you ll be able to decide the best next step.