Labels:sky | trade name | window OCR: Static Dewpoint Desian Now that you have little bit of background about how this calculated, know that not necessary calculate this stuff any more. Also know that when you see "FG" rei ers Fiberg lass' We built spreads heet and you simply put ir the variabl les R-value for materials and permeation values for the var ious mat erials That combination of -value and permeati ion value calculated in the preads sheet into the graphs that you see illus trated on the next slide. Again it's fairly simple calculation technique and you can find the same formulas that are used here in the SHRAE Handbook 07 Fundamentals. Those were used create the graphs shown next Slide ALA Continuing Education: Steel Stud Moisture Resistance XPS Design Tool refers variables ASHRAE
