Being familiar with Concrete Efflorescence How It Leads To Unsightly Foundation Walls
At Permaseal, we all respond to customer queries about concrete problems on a daily basis. Probably the most popular, and most perplexing for property owners, is what they should do when they find layers of white, flaky residue on their basement wall surfaces. This particular powder is very common on concrete types of surface -- especially in cellars and crawl spaces -- and is referred to as efflorescence.
What Causes Efflorescence?
Concrete is a porous material -- and it has been since the day it dried. As a result, it will take moisture from the dirt outdoors, steadily releasing some of this moisture into your home. This really is one of the primary reasons that basements are infamously damp, humid areas.
As this moisture passes through your concrete, it brings a little portion of minerals from the soil outdoors along with it, combined with the lime in the cement itself. When it evaporates in your cellar, it leaves these types of minerals behind. With time, they create the white-colored, flaky powder that you observe on your wall surfaces right now.
Washing Efflorescence from Basement Walls
There are many products on the market today that are specifically aimed at getting rid of stains from cement walls and flooring. One good way to remove efflorescence is usually to rent a pressure washer from a nearby hardware store and to blend it with these kinds of chemicals to successfully blast efflorescence off of the concrete.
For a more economical solution, however, you could substitute these custom chemicals with a solution of bleach. Coupled with a power washer, pressure washer, or just by applying with a scrub broom and some hard work, you ought to be able to clean off the majority of efflorescence challenges.
Phosphoric acid could also be used to not only remove efflorescence powder but also corrosion, grime, stains, and hard water deposits. However, phosphoric acid, as well as other chemicals, should be used cautiously and with great care.
Safeguarding Your Basement from Efflorescence
At Permaseal, we suggest protecting your cement surfaces from efflorescence before a problem arises. However, if you clean already affected concrete, protection can be applied after.
Our recommended way to avoid efflorescence is by sealing your cement walls with a cement sealer. The product works deep in the pores of your concrete walls and floors to create a glass-like silicate bond in the concrete.
This barrier puts a stop to the movement of moisture through the basement walls and flooring surfaces, protecting your basement from both efflorescence and also the water vapor transmission linked to basement humidity.
Concrete treatments can be applied as a spray, roller, paint brush, and also other ways, and it cures in 2-4 hours. It's harmless for inside use in addition to outdoor usage, and can protect your basement in many different ways.