Discolored Basement floors & walls - should I be worried? - Reader Question.

Basement walls have been constructed many different ways in the 1900s. Most of the homes we live in have been built to standards created in the 1970s based on the last energy crisis. However older homes have foundations that were created using techniques that predate American History.

With so many different types of basements, wall coverings, and materials used, discoloration could happen for multiple reasons.

The most common foundations that are seen today are: Crawl Spaces (brick, block or poured concrete), Full head height basements (stone, brick, block, or poured concrete).


What having a discolored basement wall could mean:
As I mentioned discolored walls can mean quite a few things. Depending on the history of the house, these stains could be insoluble materials like oil, paint, ink, or anything else that can be washed out of a porous service. The more common cause for discoloration of a floor or a wall is water or fire damage.

Water damage leaves residues behind like efflorescence that is much like a fine powder. Efflorescence is simply the left over minerals from water that has evaporated from the service. Brick or stone foundations that have had plaster laid over it to produce a smooth finish to the wall could also soak up the water, mold, rot and flake off. During this process the plaster will change color. Browns, yellows, oranges and greens are typical to see on a plaster that is coming in contact with water.

Same basic rules apply to the floor.

If you think you have water or fire damage in your home or basement, have your home inspected by a professional to see if there are any possible damage issues that need to be corrected. If your foundation is in fact leaking, or allowing water into your basement, consider correcting any foundation issues that need repair and hiring a basement waterproofing contractor to fully protect the basement from future floods.

Related Reading and Links
Read about the Top 6 Basement Mistakes that contractors and homeowners make. See what other readers have asked in Safe'n'Dry Basement Blog's Reader Questions Section
Ask Jacob A question Directly on Pioneer Basement's Help Forums!
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Water coming through walls in the basement

Oddly enough this is a very common problem. Having water come through the foundation walls in your basement is something that can happen to anyone, even with someone with great landscaping outside of their homes and proper backfill around their home.

The main issue here is that concrete is a porous material. It has the ability to absorb water. So when water comes into contact with dry concrete it gets absorbed into it and eventually fills up the pores inside of the concrete. These tiny pores are left behind from the water evaporating out of the concrete during the curing or drying process. Affectionately called microcosms, they have very thin separations of concrete between them. As the water is absorbs, the water molecules build up and create pressure. This pressure helps to break through these pore separations.

Eventually all basements leak. Once the pressure builds up enough, or the water works its way through the series of pores, it can break through and enter your basement from your wall.

Another, more obvious and easy, way for water to enter your basement is through foundation issues such as cracks or separations.

These cracks and separations occur for a number of reasons, but the problem comes from the water on your floor.

Waterproofing and Foundation repair are two ways to remedy these two situations that can allow for water to start piling up in your basement.

If you’re looking for foundation repair or waterproofing in your area:
www.nawsrc.org (national association for waterproofing and structural repair contractors)
www.pioneerbasement.com (MA, CT, RI, waterproofing and structural repair)
www.basementdepot.com (diy waterproofing supplies and crack repair products)
www.GrateProducts.com (a national waterproofing product and supply company; highly recommended for contractors)