Roof Ridge Sag

Some roofs sag because of decay to the inside beams and sheathing.

Roof ridge sag.

On initial review of the garage roof interior our expert immediately saw the cause of the garage roof bowing. 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.

Water damage although roofs are designed for optimal water drainage flooding or heavy rainstorms over time can cause damage to the structure of the roof. 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. 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.