ICC Clarifies Change to 'Air Barrier' Definition in 2018 Code

Originally published by: International Code CommissionFebruary 2, 2018

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The ICC recently released a summary of a code change to N1101.6 regarding the definition of an air barrier. According to the ICC document, “Revisions to the definition of air barrier are editorial to clarify the meaning and to better align with the code provision requiring continuity. The definition for continuous air barrier has been removed because it is redundant; air barriers must always be continuous. The air leakage rate of the building thermal envelope is measured through the mandatory blower door test.”

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