Efflorescence is a crystalline deposit of salts often seen on brick, concrete, paving stones, stucco, or other building surfaces. It occurs when water leaves behind salt deposits on or in the masonry surface. It has a white or grey tint and can also appear as a powdery substance on floors or walls. In French, the word efflorescence means \u201cto flower out\u201d and in this case, it is salt that is flowing out of surfaces. If it is not taken care of properly, the issue can spread quickly. Efflorescence is not dangerous, but it can lead to moisture problems causing structural damage to building materials. That is why it is important to act when you spot it.<\/p>\n
There are three conditions needed for efflorescence to occur:
\n1. Water-soluble salts are present.
\n2. Moisture is available to turn salts into a soluble solution.
\n3. The material is porous, and salts can move through to its surface, where the moisture then evaporates and causes the salt to crystallize.
\nThe salt may already be present in the brick, concrete, paving stones, stucco, or building surface. It may also be in the grout or cement holding the surfaces together. If the surface is in contact with soil, then efflorescence could form. Efflorescence may occur during home construction if materials are left out overnight and absorb moisture from damp soil and rain. It is often a seasonal problem, usually escalating in winter (when rain, snow, sleet, and other weather conditions arise). <\/p>\n
It is common for people to confuse mold with efflorescence. Efflorescence itself isn’t dangerous or harmful. It can lead to potential moisture problems that can cause structural damage to building materials. So it is important to take action when you notice efflorescence in your basement, on your paving stones, or on other structures.<\/p>\n
Hydrophobic sealants: to prevent the absorption of water\/water from traveling within the building material
\nCapillary breaks: can minimize the risk of salt entering the material
\nQuality masonry construction: eaves, overhanging coping, and flashings will minimize the risk of water entering a wall
\nBeing intentional about landscaping and sprinklers: to prevent water from reaching porous building materials
\nInstalling grout with mechanical vibration: this will limit the chance of voids in the grout
\nStoring masonry materials properly: keep materials off the ground and cover them with waterproof materials to protect against groundwater and precipitation
\nUtilizing grout admixtures: these are designed to improve the flow of grout mix and reduce its water content simultaneously<\/p>\n
The best way to remove efflorescence is dependent on the surface and the composition of salts. Think of these as more of an ongoing solution rather than a permanent fix.
\nPressurized water \u2013 Dissolve the efflorescence by applying pressurized water. Make sure to dry off the water from the building material after otherwise, the efflorescence may reappear.
\nDiluted vinegar \u2013 It is less harmful than industrial chemicals and it works! Just rub the efflorescence with diluted vinegar.
\nBrushing \u2013 For some salts, you can wash them away with a hand brush, mild detergent, and a rinse. <\/p>\n","protected":false},"excerpt":{"rendered":"