Why Mold Takes Root in Sioux Falls Crawl Spaces
Crawl space mold develops when moisture lingers around wood framing. Humid air, damp soil, leaks or water intrusion can drive up moisture levels, setting up conditions where mold can develop on joists and subfloors. You may notice white or gray growth, musty odors or shifts in the floors above.
If it goes unaddressed, ongoing moisture can contribute to dry rot damage, weakened framing and sagging floors.
Symptoms
Warning Signs You May Need Crawl Space Mold Treatment
Mold in a crawl space isn’t always obvious from inside the house. Some signs appear on the wood below, while others show up as odors or changes to the floors above. It may be time for a professional inspection if you notice:
- White, gray or dark growth on the floor joists or subflooring
- Persistent musty odors in the crawl space or living areas
- Wood that looks damp, stained or discolored
- Condensation or elevated humidity below your home
- Cupping or other shifts in the floors above
- Mold that comes back after cleaning
Our MoldEx & LumberKote Crawl Space Solutions
Treats Existing Mold on Crawl Space Wood
MoldEx Mold Treatment
MoldEx is applied directly to the affected floor joists, subflooring and other wood surfaces to treat existing mold and staining. The treatment reaches the areas where growth is present, helping clean and restore the appearance of the wood. After treatment, crawl space framing looks cleaner and is ready for whatever additional moisture-control or protective measures the home may need.
Protects Crawl Space Wood After Treatment
LumberKote Framing & Subfloor Sealer
LumberKote is a protective coating applied to crawl space floor joists, beams and subflooring. It puts a durable barrier over the wood to help shield treated or vulnerable surfaces from future moisture-related damage and mold growth. Once applied, the framing has a clean, uniform finish that gives you a visible layer of protection throughout the treated area.
How It Works
What to Expect on Treatment Day
How to Help Keep Crawl Space Mold from Coming Back
Treating existing mold is only half the solution. If excess moisture stays in the crawl space, conditions can become favorable for new growth. That’s why Blackburn Foundation Repair also looks for the source of the moisture rather than focusing only on what’s visible on the wood.
Based on your crawl space, the solution can include controlling humidity, addressing water intrusion or sealing the space from outside air and ground moisture. Encapsulation and other crawl space repair solutions can help produce a drier environment and limit the conditions mold needs to grow.
What To Expect
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Full home
inspection
An expert will inspect the problem area and surrounding conditions, including soil movement, drainage, structural integrity, and any related concerns.
Clear explanation
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We’ll walk you through what we’re seeing in easy-to-understand language so you know the root cause of the issue, not just the symptoms.
Review recommendations
If repairs are needed, we’ll outline your options, pricing, and timeline so you can make the best decision for your home.
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