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However, interior sealers are good for preventing high atmospheric humidity inside the basement from absorbing into the porous masonry and causing spalling. Spalling is a condition where constant high humidity or moisture breaks down masonry surfaces, causing deterioration and shedding of the concrete surfaces.
A slab-on-grade or basement floor should be poured over a cross-laminated polyethylene vapor barrier over 4 inches (10 cm) of granular fill to prevent wicking of moisture from the ground and radon gas incursion. Inside a steel building, water vapor will condense whenever it comes into contact with a surface that is below the dew point temperature.
Moisture saturated basement walls will add moisture directly into basement interstitial spaces leading to interstitial condensation with cool basement temperatures. All interstitial condensation can cause uncontrolled mold and bacteria growth, rotting of wood components, corrosion of metal components and/or a reduction in the thermal insulation ...
Since silverfish are attracted to moist, humid environments, reducing your home's humidity level to below 60% can help eliminate them. Consider using a dehumidifier in high-humidity areas.
Consider a dehumidifier. Dehumidifiers can help remove moisture from the air in damp areas like basements and prevent the growth of allergens like mold, Dr. Wright says.
In addition, surface grading issues can lead to basement leaks, causing mildew and mold. Ideally, your lawn should have a 3% slope away from your home. If not, your inspector will disclose it.
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