Attic Ductwork Condensation

Even though the air conditioning equipment appears to be operating normally humidity inside the house is between 60 and 65 and return ducts located in the attic show significant condensation.

Attic ductwork condensation.

Over time condensation dripping from your ductwork onto attic insulation can cause it to compress which lowers its r value. You can convert your vented unconditioned attic into an unvented conditioned attic. 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. Let s say your ductwork is in your attic.

The colder the air is inside the duct the greater the chance of ductwork sweating. Ductwork located in an attic must be hung properly so that the insulation can do its job. The 1 746 square foot house has r 19 insulation between the rafters and between r 15 and r 20 of rigid foam above the roof sheathing. You can install insulation on the attic side of the register boot and you can make sure that your duct is adequately.

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. 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. There are two main ways to solve this problem. When ductwork is touching it forms a very cold spot where they are touching thus condensation begins.

When water condenses and drips into your attic or home it can cause a some serious secondary problems. As the humidity level rises outdoors condensation will gradually begin to form on the surface of your air conditioning ducts. Condensation will begin to drip onto your attic insulation making it less effective at regulating temperatures inside your home. First water dripping off of your ducts and onto your insulation can cause the insulation to compress which decreases it s r value or ability to insulate.