Additionally, as crawl spaces begin to rot and decay, the floor above will begin to sag, buckle, or become uneven. Doors may jam, mold may grow on first floor carpeting, and, in the long run, the floor itself will collapse inwards. White, powdery substances on concrete walls are not likely to be mold itself, but it's indicative of moisture passing through the walls and creating a humid environment.
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If there are moldy, musty odors, then mold will be somewhere. Dry rot damage on wood.
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Notice the cube-shaped pieces flaking off the surface. Mold and rot fungi can be classified in two ways: what grows on the surface, and what grows within the wood itself. Surface mold fungi will cause cosmetic discoloration only, and it will not significantly damage the structural strength of the wood. This mold can simply be cleaned off the surface. Decay fungi will darken and shrink the wood, leading to severe structural damage of the wood and the eventual crumbling and decomposition of the wood overall.
Wood with decay fungi looks soggy and spongy.
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This cannot simply be cleaned off, and replacement of damaged wood may be necessary. One other variety of wood-damaging fungi is dry rot , also known as brown rot and cubical rot. As displayed in the photo above, wood damage from this kind of rot is shown as deteriorating the wood into small squares or rectangles.
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Often mistaken for termite damage because of its appearance, this is an extremely damaging type of fungi. One other unique feature of dry rot is its ability to pull water from far-away water sources through "rhizomorphs. In the case of Serpula lacrymans , water has been transported as much as three stories upwards!
More About Dry Rot Damage. Some major cases of crawl space humidity stem from where your dryer vents end. If your dryer is sending air into your crawl space, it's also sending a ton of humidity with it! This humidity is exactly what mold, rot, and mildew need to start thriving in your home.
If your dryer is sending air into your crawl space, fix the problem right away!
Traditional methods of mold removal, such as bleach and water, will not provide a long-term solution for mold removal. These methods do not address rot damage or humidity issues.
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Mold will begin growing again in hours if the mold-growing environment is not changed. And dormant fungi can reactivate when dry, infected wood becomes wet again. The solution to crawl space mold and moisture is to seal the crawl space vents , install a plastic liner on the walls and floors, and dry the space with a self-draining dehumidifier.
Otherwise, any repairs and mold remediation steps you take are a temporary fix only. I don't want to spoil the surprise here, but you can read a summary and the full report here: www.
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