We cleaned a stucco home a few days and the entire house is streaked everywhere except on the covered patio. We used a mixture of 20 gallons of bleach (12.5%), 30 gallons of water and a quart of roof snot. I have attached a couple of pictures (or some reason they are sideways).It almost looks like the paint has washed off. The paint is old and in some places is pealing off. Does anyone have any idea what happened?