Condensation Attic Ductwork

Condensation on air ducts can be a serious problem.

Condensation attic ductwork.

Excessive condensation can also create conditions favorable to mold or mildew forming in areas surrounding the duct itself. Dripping condensation may also lead to a ceiling leak which not only looks bad but also rots drywall and can cause your ceiling to collapse over time. So if you see unusual water staining on any of the ceilings in your home and the roofer has eliminated roof leaks it is likely coming from some fault with the duct system in your home. When ductwork is touching it forms a very cold spot where they are touching thus condensation begins.

Ductwork located in an attic must be hung properly so that the insulation can do its job. Condensation will begin to drip onto your attic insulation making it less effective at regulating temperatures inside your home. This colder surface then chills the surrounding air to a temperature below it s dew point which causes the water vapor to condense into a liquid just like on the outside of a glass of iced teas sitting outside on a hot day. Persistent ductwork sweating may eventually lead to water damage.

It can also feed mold growth and cause ceiling joists to rot and sheetrock to disintegrate leading to unhealthy air quality in your home and the need for costly structural repairs. Over time condensation dripping from your ductwork onto attic insulation can cause it to compress which lowers its r value. Occasional condensation on a c ducts is not a problem but keeping an eye on the situation is recommended. Condensation forms when warm humid air comes into contact with a colder surface like your air conditioner s ductwork.