Efflorescence is a powdery deposit of salts which forms on the surface of bricks and mortar. It is usually white but efflorescence may be yellow, green or brown. Salts enter the wall from various ...

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 ...

A powdery substance called efflorescence will sometimes appear on stone, concrete or tile surfaces. This shows up as irregular, whitish blotches and is especially frequent around joints and grout ...

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, ...

A study of the effect of cement in the formation of efflorescence on the surface of ceramic building materials was conducted, specifically clay bricks and cement. Wicking tests were performed with ...

Those chalky white stains on your bricks could signal a big problem. It could be paint oxidizing and washing down off window trim and siding. If so, no cause for alarm. It’s just unsightly. Or it ...

Q. Efflorescence is mysterious to many. Does it ever stop forming? My brick three-family is about 120 years old and has an exposed brick wall in the back stairwell. I have lived in the house for 45 ...

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 ...

Q: A while back you had a column about what to do if inside or around your fireplace shows a lot of whiteness. My brickwork shows white; there is crud inside both upstairs and downstairs fireplaces.