Efflorescence is not a rock band. That’s Evanescence. Efflorescence is the white, chalky substance that appears on concrete, pavers, brick, and stucco. It is residue that is left behind when hard, ...

Q: I have noticed a white powder around the edges of my concrete walkway. Should I be concerned? A: The white powder is the result of efflorescence, which occurs when a soluble salt, such as earth, ...

Q. In a recent column, someone had bird droppings problems and wanted to know if the cleaning technique (12 percent hydrogen peroxide to 1 cup of ammonia) could clean a natural bluestone patio. Your ...

Two years ago I had paint removed from by townhouse. About six months ago, I started to notice some whiteness around a couple of bricks which I think may be efflorescence. How can I get rid of this?

I routinely presume that people know all about efflorescence, but in fact many don’t understand it at all. I’m referring to the fluffy white deposits you might find on your concrete floors, brick ...

I know there have been a few posts in the past about efflorescence and separately about crumbling brick, but I wanted to post in hopes of clearing up some conflicting advice. The interior, exposed ...