AK HVAC Practice Questions - Alaska Mechanical Administrator HVAC License Exam

When installing ductwork in an Alaska crawl space, what additional protection is required beyond standard insulation?

No additional protection beyond insulation A vapor barrier on the exterior of the insulation to prevent condensation and freezing Painting the ductwork with reflective paint Installing the ductwork upside down

Correct Answer:

A vapor barrier on the exterior of the insulation to prevent condensation and freezing

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