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1311 Absolute and Relative Humidity - Insulation Energy Efficiency - The Basics
 
1311 Absolute and Relative Humidity - Insulation Energy Efficiency - The Basics -

Image Text: 1: air at 70 degrees Fahrenheit (saturated) > grains of moisture > 1 pound of air > 70 degrees Fahrenheit > 1 lb. > absolute humidity = 108 grains / pound > relative humidity = 108 grains / 108 grains (saturated) > = 100% > 2a: air at 40 degrees Fahrenheit (saturated) > grains of moisture > 1 pound of air > 40 degrees Fahrenheit > 1 lb. > absolute humidity = 36 grains / pound > relative humidity = 36 grains / 36 grains (saturated) > = 100% > 2b: air at 70 degrees Fahrenheit > warm it up > 70 degrees Fahrenheit > grains of moisture > 1 pound of air > 70 degrees Fahrenheit > 1 lb. > absolute humidity = 36 grains / pound > relative humidity = 36 grains / 108 grains (saturated) > = 33.3%

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INSULATION

The Basics, Air/Vapor Barriers (Vapor Retarders), Venting Roofs, Venting Living Spaces, Attics, Flat and Cathedral Roofs, Walls Above Grade, Basements and Crawlspaces, Floors over Unheated Areas, Ventilation Systems

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