Put a dehumidifier up there plug it in set it between 50 and 60 rh and forget about it.
Proper humidity level in attic.
Here is a link to an article that describes the work.
High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.
If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.
You can test this by touching something metallic in the attic and see if you receive a jolt of static electricity.
For an attic to be properly ventilated it must also have a balanced system of intake and exhaust.
The short answer to this very involved question and the pages of temperature and humidity level data you sent is yes there is a risk that moisture from humid air in your attic will condense on.
During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold.
The federal housing administration has recommendations for the amount of ventilation you will need based on the size of your home.
After from sealing things up and fixing your pressure balance this is usually the best solution to high humidity in a spray foamed attic.
A dehumidifier can remove it.
The recommended humidity level for all rooms including the attic and crawl space in the winter is 30 to 40 percent in cold climates.
Advani hopes to finish the attic and install a minisplit although he s not sure that will lower the humidity.
Proper ventilation can help circulate the air reduce the heat build up in the attic and keep down humidity levels.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
With outside temperatures ranging between 5 f and 95 f attic temperatures range between 48 f and 92 f.
High humidity means greater chances for mold to grow.
Only about 10 of the hip roof is shaded so it gets plenty of direct sunlight.
You can add more vents over the soffits.
So the first step is to seal the air leaks.
But we can t leave it a week without the dehumidifier running that s all it takes to get up to an average 70 percent humidity and climbing.
The normal indoor humidity range in winter should be 15 to.
In rare cases the humidity level may be too low.
Air sealing an attic.
