Condensation risk ignored in unconditioned space

Condensation risk means the insulation system has to stay continuous, sealed, and dry - especially in unconditioned or humid spaces.

Stop if

• This duct is in a condensation-prone area. Do you want any special vapor-barrier or insulation detail checked before we wrap it?

Watch out

• Do not assume normal wrap is enough in humid or unconditioned spaces.

Check

• Identify whether the duct is in hot, humid, unconditioned, or exterior-adjacent space.
• Check vapor barrier continuity at seams, hangers, corners, and penetrations.
• Look for compressed or missing insulation.
• Ask if special insulation or vapor-barrier details apply.

Steps

• Identify whether the duct is in hot, humid, unconditioned, or exterior-adjacent space.
• Check vapor barrier continuity at seams, hangers, corners, and penetrations.
• Look for compressed or missing insulation.
• Ask if special insulation or vapor-barrier details apply.

More in Insulation, Liner & Vapor Barrier