Understanding Concrete Efflorescence How It Leads To Ugly Foundation Walls
At Permaseal, we answer client questions regarding concrete issues each day. One of the most common, and most perplexing for property owners, is what they should do once they find layers of white, flaky deposits on their cellar walls. This kind of powder is very popular on concrete surfaces -- specifically in basements and crawl spaces -- and it is called efflorescence.
What Can Cause Efflorescence?
Cement is a porous material -- and it has been since the day it dried. As a result, it'll accept moisture from the soil outside, steadily releasing some of this moisture into your home. This really is most significant reasons that cellars are infamously moist, humid areas.
As this moisture passes through your concrete, it brings a small percentage of minerals from the soil outdoors in conjunction with it, combined with the lime in the cement itself. When it evaporates into your basement, it simply leaves these kinds of minerals behind. With time, they create the white-colored, flaky powder that you find on your wall surfaces today.
Cleaning Efflorescence from Basement Walls
There are several products on the market today which are exclusively intended for removing stains from concrete walls and flooring surfaces. One good way to get rid of efflorescence is to rent a pressure washer from a nearby home improvement store and to blend it with these types of chemicals to effectively blast efflorescence away from the cement.
For a less expensive solution, however, you could substitute these customized chemical substances with a solution of bleach. Combined with a power washer, pressure washer, or just by applying with a scrub broom and some hard work, you will be in the position to clean off the majority of efflorescence problems.
Phosphoric acid could also be used not only to get rid of efflorescence powder but also rust, grime, unsightly stains, and hard water build up. Even so, phosphoric acid, as well as other acids, should be used carefully and with great care.
Protecting Your Basement from Efflorescence
At Permaseal, we recommend protecting your cement types of surface from efflorescence before a problem develops. Having said that, if you thoroughly clean already damaged cement, protection can be applied afterward.
Our encouraged way to protect against efflorescence is by sealing your cement walls with a cement sealer. The product works deep into the pores of your concrete walls and floors to create a glass-like silicate bond in the cement.
This barrier halts the movement of moisture through the basement walls and floors, protecting your basement from both efflorescence and also the water vapor transmission associated with basement humidity.
Concrete treatments can be applied as a spray, roller, paint brush, or other ways, and it cures in 2-4 hrs. It is harmless for indoor use as well as external use, and can protect your basement in several ways.