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  2. Indoor mold - Wikipedia

    en.wikipedia.org/wiki/Indoor_mold

    [citation needed] This moisture vapor passes through walls and ceilings, typically condensing during the winter in climates with a long heating season. Floors over crawl spaces and basements, without vapor barriers or with dirt floors, are mold-prone. The "doormat test" detects moisture from concrete slabs without a sub-slab vapor barrier.

  3. Frost heaving - Wikipedia

    en.wikipedia.org/wiki/Frost_heaving

    Photograph taken 21 March 2010 in Norwich, Vermont. Frost heaving (or a frost heave) is an upwards swelling of soil during freezing conditions caused by an increasing presence of ice as it grows towards the surface, upwards from the depth in the soil where freezing temperatures have penetrated into the soil (the freezing front or freezing boundary).

  4. Frost - Wikipedia

    en.wikipedia.org/wiki/Frost

    Window frost (also called fern frost or ice flowers) forms when a glass pane is exposed to very cold air on the outside and warmer, moderately moist air on the inside. If the pane is a bad insulator (for example, if it is a single-pane window), water vapour condenses on the glass, forming frost patterns. With very low temperatures outside ...

  5. Winter storms are hitting the U.S. — and even Texas is ...

    www.aol.com/lifestyle/stay-safe-warm-winter...

    Winter storms can turn dangerous when they cause power outages and risky road conditions. Preparation can help keep you and your family safe. Winter storms are hitting the U.S. — and even Texas ...

  6. Humidity - Wikipedia

    en.wikipedia.org/wiki/Humidity

    This explains the low levels (in the absence of measures to add moisture) of humidity in heated structures during winter, resulting in dry skin, itchy eyes, and persistence of static electric charges. Even with saturation (100% relative humidity) outdoors, heating of infiltrated outside air that comes indoors raises its moisture capacity, which ...

  7. Dew - Wikipedia

    en.wikipedia.org/wiki/Dew

    This process distinguishes dew from those hydrometeors (meteorological occurrences of water), which form directly in air that has cooled to its dew point (typically around condensation nuclei), such as fog or clouds. The thermodynamic principles of formation, however, are the same. Dew is commonly formed during select times of the day.