QOD April 1-06

If cracking occurred along the joints of a brick wall in a generally diagonal direction from a window corner up to the top of the wall, which of the following would most likely be the cause?

The lintle is swelling?

In my oppinion this question is to vage (sp)

However, I love your questions Claude… Top notch!:smiley:

I agree, with todd,

Does the crack go away from the window as it travels up?, or over the window as it travels up?


Don’t do that on a regular basis!!:wink:

Bottom corner or top corner?

i think we all know what causes this, and the answere we’re used to isn’t there, but the cause or “technical reason” is. think 2 or 3 steps deeper and you’ll get it.

Answer = lack of vertical control joints
Vertical cracking is usually an indication that the brick wall is not able to move laterally, which is a condition caused by lack of vertical expansion joints.

While I agree with the answer, the question was different.

Vertical cracks near fenestrations, particularly near the middle of a wall, are often due to extension (absence of control joints would contribute).

The original question said DIAGONAL cracks, which are always a possible indication of foundation flexure.

Russell Strahan in Texas