Condensation on Duct Work, What is the cause?, How to fix it?

       Condensation on Duct Work, What is the cause?, How to fix it?

What a lot of people do not realize is that condensation on duct work could be a big problem!.

Leaking ceilings
Condensation on duct work could lead to mold infestation and leaking ceilings!

It could cause all sorts of secondary problems such as mold infestation and leaking ceilings!.If you have been following up with our blog, you should already know that at Dust Chasers quality air duct cleaning services and HVAC hygiene in Toronto-Ontario-Canada, we have always emphasized  that when it comes to indoor air quality there is a lot of DIY`s that a home owner could do with out having to hire professionals like us.You might not think that this could be an issue that people in Toronto have to deal with, but believe me most of the people with condensation on their air ducts don`t even know about it! Nothing to worry about! In this article we will address how this condensation occurs on your air ducts, why this can be a problem, what are the causes of condensation on your duct work, and what you can do to get rid of it for ever!

                                      How Does Condensation Form on Duct Work?


Humidity is the amount of water vapor in the air.

Whether or not you realize it, there is water around us, in fact that is what actually humidity is, it is a measure of how much moisture is in the air.Air can only hold a limited amount of water, when the air is holding as much water as it can possibly hold, the humidity level is 100%.

                                                                     Dew Point

Dew Point
The dew point is the temperature at which the water vapor in a sample of air at constant barometric pressure condenses into liquid water at the same rate at which it evaporates.

We know that the air can hold a limited amount of water, but the amount of water the air can hold varies depending on temperature and pressure, as the temperature goes down the amount of water it can hold goes down, because of this the relative humidity goes up, The atmospheric temperature at which the air is saturated with water is called the dew point. The process by which water begins to condense from a gas into liquid form is called condensation.


Condensation is the change of the physical state of matter from gas phase into liquid phase,

Forms when the water vapor in the air drops out of suspension and condenses into a liquid form, the colder the air, the more likely it is that water will condense.

                             Is condensation on duct work a problem?

Yes it is and we will tell you why, first, if water is dripping off of your ducts and onto your insulation it can cause the insulation to compress, which would obviously decrease the R value (ability to insulate).

Second, it could cause your ceiling to leak, which could damage drywall and cause the ceiling to collapse over time. The last but not the least it could feed mold growth, mold could be a health issue, in the upcoming articles we will talk about mold and how you could prevent it.

                                     Causes of Condensation on Ductwork

If you don’t have adequate insulation on your ductwork, and second, if there is excessive moisture in the the air.

If you don`t have adequate insulation on your duct work, and second, if there is excessive moisture in the air. Keep in mind if you have proper amount of insulation on your duct work, condensation will not form.

                              Prevention and Treatment of Condensation on Ductwork

Fortunately it is not a hard fix to get rid of the condensation on your air ducts.

Look at around your duct work to see if there is adequate insulation wrapped around your air ducts.

Take a look at indoor humidity levels, are they too high? If yes, Turn the humidifier off, if you do not have a humidifier you might consider purchasing a dehumidifier, we will write about dehumidifiers on our upcoming blogs, make sure to check back!.



At the end of the day, if you see condensation form on your air ducts, it is either because of inadequate or poor insulation around your air ducts, or the humidity levels are too high in your house, it shouldn`t take you a very long time to figure it out, feel free to give us a call should you have any questions, Dust Chasers is your go to source for air duct cleaning services in Toronto-Onario-Canada, feel free to get involved and tell us what you think!

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