Dehumidification in hot, humid weather

SailinAway · 08-25-2021, 02:34 PM

Roof leak led to tarp on roof, which is causing extreme humidity upstairs (windows fogged over). Turned on air conditions upstairs to get rid of heat and humidity. Result:

More condensation on outside of window
Mold all around the window frame around the air conditioner
Humidity and small mold specks inside the double-paned window
Extensive mold on the frame around the inside of the window

I've washed all the visible mold except for the inside of the window. I replaced the two-year-old air conditioner because it smelled like mold. I realize I need to get the window glass replaced.

What I can't figure out is why the air conditioning seems to be worsening the humidity problem around the unit. I think the combination of hot, humid summer, the roof tarp, and poor attic ventilation is the problem. I will have roof vents installed when the roof is replaced. There are soffit vents and gable vents, but the gable vents are too small.

In the meantime, what can I do to reduce the humidity upstairs and avoid more mold? Pretty worried about the health impacts at this point.

Thanks!

08-25-2021, 02:34 PM	#1
SailinAway Senior Member Join Date: Apr 2019 Posts: 991 Thanks: 256 Thanked 280 Times in 169 Posts	Dehumidification in hot, humid weather Roof leak led to tarp on roof, which is causing extreme humidity upstairs (windows fogged over). Turned on air conditions upstairs to get rid of heat and humidity. Result: More condensation on outside of window Mold all around the window frame around the air conditioner Humidity and small mold specks inside the double-paned window Extensive mold on the frame around the inside of the window I've washed all the visible mold except for the inside of the window. I replaced the two-year-old air conditioner because it smelled like mold. I realize I need to get the window glass replaced. What I can't figure out is why the air conditioning seems to be worsening the humidity problem around the unit. I think the combination of hot, humid summer, the roof tarp, and poor attic ventilation is the problem. I will have roof vents installed when the roof is replaced. There are soffit vents and gable vents, but the gable vents are too small. In the meantime, what can I do to reduce the humidity upstairs and avoid more mold? Pretty worried about the health impacts at this point. Thanks!