Understanding Concrete Efflorescence How It Results In Unsightly Foundation Walls
At Permaseal, we respond to client questions regarding concrete problems on a daily basis. One of the most popular, and most puzzling for homeowners, is what they should do once they find layers of white, flaky residue on their cellar walls. This kind of powder is very popular on concrete types of surface -- particularly in cellars and crawl spaces -- and is known as efflorescence.
What May Cause Efflorescence?
Cement is a porous material -- and it has been since the day it dried. Because of this, it is going to accept moisture from the ground outdoors, slowly releasing some of this moisture into your dwelling. This really is most significant reasons that cellars are infamously damp, humid areas.
As this moisture passes through your cement, it brings a small portion of minerals from the earth outside along with it, along with the lime in the concrete itself. When it evaporates into your cellar, it leaves these kinds of minerals behind. With time, they create the white, flaky powder that you see on your walls today.
Cleaning Efflorescence from Basement Walls
There are many products on the market today which are exclusively geared towards getting rid of unsightly stains from cement wall surfaces and flooring surfaces. One great way to get rid of efflorescence is usually to rent a power washer from a local home improvement store and to blend it with these types of chemicals to effectively blast efflorescence off the concrete.
For a less expensive solution, however, you may substitute these custom made chemical substances with a solution of chlorine bleach. Coupled with a power washer, pressure washer, or just by applying with a scrub broom and some hard work, you should be in the position to thoroughly clean off most efflorescence issues.
Phosphoric acid may also be used not only to get rid of efflorescence powder but also corrosion, grime, unsightly stains, and hard water build up. However, phosphoric acid, as well as other acids, must be used cautiously and with great care.
Protecting Your Basement from Efflorescence
At Permaseal, we recommend protecting your cement surfaces from efflorescence before a problem comes up. Having said that, if you thoroughly clean already affected cement, protection can be applied after.
Our suggested way to prevent efflorescence is by sealing your concrete walls with a cement sealer. The product works deep in the pores of your cement walls and floor surfaces 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 floor surfaces, protecting your basement from both efflorescence and the water vapor transmission connected with basement moisture.
Concrete treatments can be applied as a spray, roller, paint brush, or other ways, and it dries in 2-4 hours. It's harmless for indoor use in addition to outdoor use, and can protect your basement in many different ways.