Tight

Low infiltration rate. The 2012 IECC code requires between 3 and 5 ACH (air changes per hour) @ 50 pascals pressure for new construction (depending on the climate zone). The ENERGY STAR Certified Homes program requires between 3 and 6 ACH depending on the climate zone.
Related Term: 
Air Infiltration Description
Unit of Measure: 
None
Sector: 
Commercial, Residential, Multifamily
Bedes version: 
Version 2.6
Term ID: efa6a221-ce8e-4b34-8931-18d944840296

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