Roof Ridge Sag

The ridge board was cracked and sagging.

Roof ridge sag.

In a stick frame non truss sloped roof these issues usually cause the roof ridge to sag in the middle giving it a swayback look but can also cause one side of the roof to sag. He advised the insured that immediate temporary structural reinforcements should be inserted under the cracked ridge board to relieve the load on the broken ridge board and rafters. When you have undersized rafters or inadequate storm bracing snow or ice resting on your roof may cause it to sag. Some roofs sag because of decay to the inside beams and sheathing.

Decay can occur over time due to a number of reasons including leaks in the roof or leaks from guttering or downpipes wet rot or even insect attacks such as termites damaging the ends of the bearings. Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. 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.