Stair Pressurization Estimator

Check out this new estimating tool for stair pressurization systems. By entering in various parameters for the building and stairs, as well as the assumed outdoor temperatures, you can get a starting point for the required volumetric flow rate for your stairs. Note that this tool is for estimating purposes only and uses the following major assumptions:

• All stair doors are closed
• All stairs are uniform in dimension
  
• Building/stair temperature is 70F
  
• Atmospheric pressure is 14.7 psi
  
• No wind effects
• No other pressurization systems in the building