Which type of duct material is used in low-traffic areas and provides insulation to the duct system?
A) galvanized metal
B) fiberglass-wrapped, spiral duct (flexible duct)
C) fiberglass, fiberboard sheeting
D) round sheet metal

Question

Quizplus · Accepted Answer

Fiberglass, fiberboard sheeting provides insulation to the duct system and is suitable for low-traffic areas. Galvanized metal and round sheet metal are better suited for high-traffic areas, and a fiberglass-wrapped spiral duct is more flexible and used for situations where bending or twisting is necessary.

Which Type of Duct Material Is Used in Low-Traffic Areas