Air Infiltration Value Units

The units of measure for the Air Infiltration Value field.

Data Type: 
Constrained List
Category: 
Unit of Measure: 
N/A
Source: 
Sector: 
Commercial, Residential, Multifamily
Application: 
BuildingSync
List Options Option Definition Unit of Measure Source
ACH Air changes per hour ACH
ACH50 Air changes per hour at 50 Pascals (Pa) pressure ACH
ACHnatural Air changes per hour at natural air leakage rate ACH
CFM Cubic feet per minute cfm
CFM25 Cubic feet per minute at 25 Pascals (Pa) cfm
CFM50 Cubic feet per minute at 50 Pascals (Pa) cfm
CFM75 Cubic feet per minute at 75 Pascals (Pa) cfm
CFMnatural Cubic feet per minute at natural pressure cfm
Effective Leakage Area Total area of all the gaps and cracks in a premises which contribute to infiltration. It is usually calculated in the U.S. at 4 pascals in2
Term ID: 06aa5aca-890c-4b24-965a-edad902f16c6
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