Several years after you complete a bathroom or kitchen renovation, it inevitably starts to show some wear. One culprit is grout: Over time, it stains, cracks, and becomes loose, even if it was ...

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, ...

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, ...