Just like many duct systems, however, spiral ducts often require insulation. There are two primary reasons to insulate a spiral duct: thermal and acoustical control. In the case of thermal control, ...

Condensation control — Preventing condensation that could damage insulation and other HVAC system components or possibly lead to microbial growth; and Energy conservation — Reducing HVAC system ...

Although fiberglass has a satisfactory R-value if it’s not professionally installed, it can lose thermal ... acoustic insulation, fiberglass is used in walls, ceilings and even ducts to help ...