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  • Batt

    A widely used form of insulation.
  • Vapor Barrier

    It’s an essential component of construction in a healthy home.
  • Poly Moisture Barrier

    Sheets of heavy plastic that help keep moisture out.
  • Vapor Retarder

    A material that slows down the amount of diffusion through a solid material, often used in insulated walls.
  • Vapor Pressure

    A force that drives vapor molecules from an area of high concentration to an area of low concentration. In homes this typically refers to water vapor pressure.
  • Evaporation

    The changing of a liquid to a gas or vapor, requiring heat.
  • Biofilm

    Germs cooperate to build and maintain a barrier that keeps even strong disinfectants such as bleach and iodine at bay.
  • Condensation

    The changing of a gas or vapor into a liquid, accompanied by the release of heat.
  • Diffusion

    The migration of molecules of a gas or a vapor (or a liquid) from an area of high concentration to an area of low concentration.
  • Latent Heat

    The amount of heat that must be removed from air to change the water vapor from a gas to a liquid without changing its temperature.
  • Allergen Slipcover

    These bedding accessories are a must for people with severe asthma or allergic sensitivity to dust mites.
  • Relative Humidity (RH)

    The amount of moisture in air compared to the maximum amount of moisture that air at that temperature can contain, usually expressed as a percentage.
  • Sensible Heat

    The amount of heat involved in raising or lowering the temperature of air, not including any heat required to cause water vapor to change state (e.g. from a gas to a liquid).
  • Vapor Steam Cleaners

    Vapor steam cleaners are versatile machines that offer the benefit of chemical-free cleaning.
  • Diffusion Barrier

    A material that slows down the amount of diffusion through a solid material, often used in insulated walls.
  • Humidity

    Humidity is moisture in the air in the form of invisible water vapor. See absolute humidity and relative humidity.
  • Vapor

    The gaseous form of a substance that is normally a liquid at room temperature.
  • Insulation

    A material that inhibits the flow of heat.
  • Dehumidifying Heat Pipe

    In humid climates, even air conditioned air may feel clammy without the assistance of a little technology.
  • ERV

    Energy recovery ventilators (ERVs) are heat recovery ventilators (HRVs) that exchange moisture between the two air streams.

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