My Roof Sags

Step 1 the first step is to the basement first.

My roof sags. A sagging roof can come in one of a few classic forms each with its own cause. Straighten out your old house s sagging roof and get rid of those cracks in the wall with these easy to follow steps. 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. To be safe you will want to have a professional residential roofing contractor or structural engineer take a look.

Determine where the sag is in your roof in relation to your attic. The fix here is to replace the thin sheathing with thicker sturdier sheathing. From there you ll be able to decide the best next step. The expert should be able to inspect your roof and explain to you what the problem is.

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. Also inspect the metal or plywood gusset plates used where your wood meets on a truss. If the roof sags between the rafters or trusses the most likely cause is sheathing that s too thin for the area it covers.