Temperature, Relative Humidity, the Psychometric Chart, and you

Here’s a psychometric chart, a page describing how to use it. Now, you can calculate where the water vapor will condense in your wall assembly.

psychometric-chart

how to use psychometric chart.pdf

A good calculator can be found at:

http://www.hpc.ncep.noaa.gov/html/dewrh.shtml

find weather data at: (choose Monthly Weather Summary)

http://www.weather.gov/climate/index.php?wfo=sew



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