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.

Roof bowing in the middle.

Installing new rafters directly alongside the weak or damaged ones is often enough to correct this problem. 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. Therefore giving them a good look is critical when addressing sagging bowed or wavy roofs. Repairing a roof rafter in this condition is not a hard project but it can be difficult if there is not easy access.

It might be something. Use your string line to determine how much the roof need to go up. Curling shingles also referred to as fishmouthing is when asphalt shingles have curled on the ends and appear to be bent or twisted. 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.

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. This often occurs in the middle of the shingle tab. Undersized rafters also can cause sagging along the whole side or plane of a roof. Roof lines should be arrow straight.

One of the most common causes of roof issues are problems related to the rafters or trusses. 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. 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.

If you notice that there is a visible dip in your roof chances are you have a problem with one or several rafters and you may soon be facing more issues like water leaks bowed out walls or your roof caving in on you. There are different reasons and types of curling.