Roof Sags In Middle

The home may not be designed to support the weight of this extra roofing material and it will sag.

Roof sags in middle.

This is the easiest problem to repair. Two or more roofs on one structure spell trouble. Rotten or saturated sheathing can also cause roof lines to sag. Non foundational reasons for a sagging roof.

Use your string line to determine how much the roof need to go up. If your rafters are still sagging a bit and it is causing your roof to dish out a little in the center of the roof sides add a 2x4 that goes all the way across the rafters in the center of the length of the rafters. If the framing is sound and problems are not found elsewhere but the roof still sags the. 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.

A sagging roof can come in one of a few classic forms each with its own cause. Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. Additionally if your roofer has used material that is much heavier than your previous roof it can sag for the same reason.