Efflorescence On Wood In Attic

Efflorescence on the other hand is almost always white or yellow.

Efflorescence on wood in attic.

White mold is commonly found growing on wood surfaces. Efflorescence is often described as dissolvable salts in moisture that are transported through porous materials such as concrete brick block and stone through capillary action. It often looks like mold but really it s caused by salt deposits. We live in a 1950 s two story home located in an area with low humidity warm summers very cold winters.

Efflorescence is a salt deposit left behind when moisture makes its way through concrete. Before insulating our attic i would like to know if i should be concerned about a heavy white efflorescence on the bricks of the chimney in our attic. When the water evaporates what remains is a white crystalline substance that resembles mold. Thanks in advance for your help.

Efflorescence is odorless while mold growth often produces a musty odor. Rafters in the attic floor joists in the basement or. When water seeps through concrete brick or stone it can leave behind salt deposits. Mold on the other hand grows on organic materials such as wood.

Efflorescence develops on inorganic building materials like concrete and brick. Another indication though imperfect is the presence of a mold smell. While mold can be these colors you know you are not looking at efflorescence if it is black gray green blue or pink. In order to tell if it is white mold or efflorescence mist the affected area with water.

If you find a white mold like substance on sheet rock or wood you can certainly rule out efflorescence. Efflorescence will only occur on concrete brick or other masonry structures.