It doesn’t sound enjoyable when condensation forms on AC ducts. However, it isn’t usually the end of the world for the priceless life of your air conditioner. The problem of sweating ductwork is one that almost all homes experience. Fortunately, fixing it is also quite simple. But first, let’s explore what ductwork sweating is and its causes of it before we discuss how to avoid moisture from forming on air ducts.
What Is ductwork in an air conditioner?
The network of ducts in your air conditioner delivers conditioned air from your central AC system throughout your house. This network moves air from the air vents to the primary air conditioner or heater and back again. Your home’s ducts may be fiberboard, fiberglass, or sheet metal. Knowing the kind of ducts in your house is crucial as it will determine whether or not you need to be concerned about ductwork sweating.
Metal ductwork is often seen in older houses. Flexible ducts are the alternative to rigid ducts. These are made of plastic tubes with wire and reinforced insulation. Metal ductwork is particularly susceptible to ductwork sweating, if inadequately insulated. Flexible ducts aren’t entirely safe either. However, let’s discuss condensation first before we explain why.
How are AC ducts affected by condensation?
Why should you be concerned about how to avoid moisture from forming on air ducts? Indeed, a little ductwork sweating isn’t a cause for alarm. It’s time to act, however, if you start to see a lot of condensation on your air ducts.
This is why:
- Ductwork insulation is harmed by sweating.
Your home’s insulation may ultimately get wet with condensation from AC ducts. The insulation’s R-value might be impacted by the water drops, which over time, will reduce efficiency. You might expect more significant than usual energy bills if your home doesn’t have enough insulation. Your insulating material becoming heavier when it gets wet is another downside. It could sometimes cause ceiling leaks or a future collapse.
- Excessive indoor humidity is exacerbated by sweaty air ducts.
Both your house and your body may suffer from high humidity. Sweating ductwork makes the air within the home much less pleasant by adding too much moisture to it. High indoor humidity levels cause wood flooring, wallpaper, and paint to deteriorate and produce an unpleasant aroma. And these repairs are costly.
- Mold and mildew development.
In a warm and damp environment, mold and mildew will flourish. Mold will thrive in environments with excessive indoor moisture levels brought on by condensation on air conditioning ducts. Mold can eat through whatever it grows on, even the structural elements around your house. This includes any furniture around your home and the wood used to build it. Additionally, mold spores may cause allergies and poor indoor air quality.
- Structural element water damage.
Wood and water do not mix nicely. Consequently, condensation on AC ducts may ultimately seep into your home’s structural components, where it may cause corrosion and degradation. This may endanger the structural integrity of your home in addition to short-term thermal capacity loss. Additionally, excessive ductwork sweating might cause your ceilings to leak water, leaving stains.
How can air duct condensation be stopped?
You will need to take control of various elements in your home and make significant modifications to stop ductwork from sweating.
- Maintain ducts correctly.
As mentioned, retraction of airflow from blocked ductwork may result in condensation on AC ducting. You can maintain air filters by cleaning and changing them, but not the ducts. A professional HVAC contractor should always be used since they have the specific tools needed for the job.
- Give metal ducts some insulation.
If you’re skilled at doing your home repairs, it’s a reasonably straightforward chore that won’t cost more than $400. Additionally, be aware of any openings in the ductwork or the walls that allow air to travel through. Caulk or aluminum foil tape may be used to close these gaps. Attic insulation is also crucial if your AC ducts are located in your attic.
- Maintain clean air filters.
A clean HVAC filter might reduce your energy expenditures by up to 15%. As a result, your house becomes very humid, which may result in condensation on the air ducts.
Reducing AC duct condensation.
It might be intimidating to start learning how to reduce condensation on air ducts, but figuring out its causes may make things a lot easier. AC duct condensation may be brought on by high humidity levels, inadequate insulation, filthy air filters, and clogged ductwork. You may combat these problems by cleaning your ductwork, purchasing a dehumidifier, and installing insulation around your AC ducts.