For those who are having a problem with attic condensation.
High humidity attic winter.
So the first step is to seal the air leaks.
These old houses rarely have roof deterioration or interior roof rot problems in winter.
Air sealing an attic.
Here is a link to an article that describes the work.
If you notice condensation on your windows and walls find peeling wallpaper or bubbled paint or see mold spots around the house your home s humidity is too high.
The normal indoor humidity range in winter should be 15.
High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.
Do humidity levels rise and fall in the winter months.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
The humidity gets to the high nineties when the temp gets below 40 at night and then drops to 60 once the attic temp reaches the sixties.
Advani says he runs a dehumidifier in the basement during the summer and a whole house humidifier in the winter.
When it exceeds that threshold by too much and for too long you could experience problems like mold growth.
During the spring summer and fall relative humidity rh in a spray foamed attic often exceeds the comfort threshold of 60.
If you ve got a spray foamed attic and you ve got high humidity here s how to fix it for good.
But the humidity level still too high for my.
An indoor humidity of between 45 to 55 percent is ideal but anything higher will cause problems.
During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold.
To find out how serious your humidity issue is hang a hygrometer on your wall.
Humidity settings are another issue that can make or break the performance of your heating and cooling systems and your attic ventilation.
If the temp stays above sixty at night and during the day then the humidty level stays in the 50s or below.
The attic temp is generally around 10 degrees higher than the outside temp.
High humidity doesn t necessarily mean the there is more moisture just that the air is having a tougher time holding the.
When it s not running the humidity in the attic drifts steadily toward 100 percent over a.
Indoor humidity can soar.
High humidity in the attic insulating the underside of the roof deck solves one problem and.
