Moisture forming on the glass window panes or other flat surfaces.
Normal for attic to have some condensation.
Condensation in the home a warning sign.
Condensation is more apt to occur in climates where the average temperature is 35ยบ f or colder.
This accumulation can leak through the attic floor and into your living space.
Noticeable musky damp odor.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
Traces where water has trickled down the walls.
Whenever there is a contact between the hot humid air and cold metal surface then there will be sweating or condensation on the metal surface so it is very important to have a proper insulation for the air handler ducts in case the portion of the duct is coming in contact with the unconditioned air outside.
If you own an older home or your ductwork is not properly maintained ductwork sweating is more likely to become an issue as both the temperature and humidity levels rise.
Causes of attic condensation problems the primary cause of attic moisture problems is due to moisture transported from the heated portion of the home into the unheated attic via airflow see figure 1 above.
The simple physics behind sweating is.
Inspect your attic insulation.
Improper or no insulation of ducts.
In come cases duct condensation can be a sign of a duct leaking air which reduces your a c unit s efficiency.
Common causes of condensation in the attic.
If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.
This condensation can form droplets of water and accumulate into the insulation below.
Because the average humidity level is 10 20 in phoenix.
Signs of condensation in the attic may include the following.
It is common for poorly vented and insulated attics to develop attic condensation.
Condensation is usually first noticed on your windows and skylights because they are the most visible areas of your house.
If you have taken the proper steps to remove excess humid air from your home and you re still having condensation issues it might be time to check the attic insulation.
Insulation is responsible for keeping warm air inside your living space and out of the attic where it can lead to condensation.
Excessive moisture in the air.
Condensation is a common sign of inadequate insulation and or ventilation.
So if you have noticed that you have lots of icicles hanging from the edge of your roof it is also probable that your attic has condensation problems.
Think about it condensation on ductwork probably isn t a big problem in phoenix arizona but why.
It is normal for condensation to be around the drain pipe this is a common sign of the ac unit being hard at work even more so on hot and humid days.
To save time and better pinpoint the problem you can hire a professional to inspect your insulation and fill any gaps that might be letting warm air into.
However an attic in pensacola florida is likely to have a humidity level closer to 100 and the risk of condensation on ductwork would then go up quite a bit.