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Independence Day Help Desk StaffingThe Building Energy Codes Program will have reduced staffing July 4 – July 8, 2024 for the Independence Day holiday weekend. Response times may be delayed. Please expect to receive responses after July 8, 2024.
Yes, in Section 402.4 of the 2012 IECC, testing is now required instead of an option between testing or visual inspection such as in the 2009 IECC. Also, the air leakage rates changed.
| Air Leakage Rates | 2009 IECC | 2012 IECC |
|---|---|---|
|
Climate zones 1-2 |
<7 ACH @ 50 Pa |
<5 ACH @ 50 Pa |
|
Climate zones 3-8 |
<7 ACH @ 50 Pa |
<3 ACH @ 50 Pa |
