AL Insulation Practice Questions - Alabama Insulation Contractor Examination Exam

In cold climates, interior vapor retarders are placed on the warm-in-winter side primarily to:

Encourage indoor humidity to condense inside exterior sheathing all winter Limit interior moisture from diffusing into cold wall layers where it could condense Heat the outdoor air before it enters Replace the need for any exterior weather barrier

Correct Answer:

Limit interior moisture from diffusing into cold wall layers where it could condense

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