The seasonal tumblers are all clicking into place here at my home. The same thing might be happening where you live. My ...

If you've noticed that a white powder has appeared on concrete ... Some people mistakenly believe that efflorescence is mold, ...

Should I be concerned? A: The white powder is the result of efflorescence, which occurs when a soluble salt, such as earth, sand or rock is present in an environment of evaporating water.