Roof Bowing In The Middle

It is more common than you might think for a concrete block foundation wall to bow inward and repairing the problem is a tall order even for an accomplished do it yourself homeowner.

Roof bowing in the middle.

If you can see a dip curve or swag on the peak when standing in the street your roof has a problem. Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. Undersized rafters also can cause sagging along the whole side or plane of a roof. Use your string line to determine how much the roof need to go up.

Roof lines should be arrow straight. 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. It might be something. What causes a sagging roof line.

There are different reasons and types of curling. Therefore giving them a good look is critical when addressing sagging bowed or wavy roofs. Read on to find out what you can do. That s why most of the ridge sagging occurs in the center of the roof page top photo.

As the wall tops are pushed outwards at their center either the entire wall leans over or as the wall is held up at the building corners gable ends the wall center may break and bend over as in my photo above. 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. 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. Repairing a roof rafter in this condition is not a hard project but it can be difficult if there is not easy access.

One of the most common causes of roof issues are problems related to the rafters or trusses. This often occurs in the middle of the shingle tab.