Measure with hygrometer sold where they sell thermometers.
Removing humidity from attic.
Need advice removing humidity from attic a lot of the air that ends up in the attic originates in the basement and if unfinished there is often easy access to many of those leakage areas.
Here is a link to an article that describes the work.
If high humidity is a problem you can t overcome by other methods remove moisture from the air with a dehumidifier.
As the moisture migrates upwards to the colder attic areas during the winter months the relative humidity is increased to the point that condensation can occur on cold surfaces.
Air sealing an attic.
If humidity level is too high dehumidify.
Use a wet vacuum to remove any excess water from this space before you start the mold removal process.
Humidity level inside home should be maintained between 35 55.
They re effective in laundry rooms basements bathrooms and any room that isn t air conditioned or has poor air circulation.
Install a dehumidifier in your attic.
So the first step is to seal the air leaks.
Bathroom fans should vent to the outside.
The solution was to install more attic insulation do some required air sealing on the.
A dehumidifier can remove it.
Humidity will vary among rooms.
The moisture was rising with the warm air of the home as it escaped past the insulation and it was trapped in the attic because there was no roof ventilation.
High humidity in an attic is usually caused by air leaks in the ceiling of the top floor of your house.
The normal indoor humidity range in winter should be 15.
Run fans during bathing and at least 20 minutes afterwards to remove excess humidity.
The humidity in the basement measured 40 the first floor was 45 50 but the attic was 62.
Poor ventilation in an attic can result in condensation promoting mold growth in the framing.
Remove excess moisture in some cases as with a roof leak issue you may have standing water to contend with in your attic.
Put a dehumidifier up there plug it in set it between 50 and 60 rh and forget about it.
After from sealing things up and fixing your pressure balance this is usually the best solution to high humidity in a spray foamed attic.
Unfortunately attic moisture is a problem that often goes unnoticed due to the simple fact that most homeowners rarely access this part of their home.
This can result in mold rust and deterioration of wood and structural fasteners.
A typical homeowner may only access his or her attic a few times out of the year to store or remove their belongings.
During winter months humidity from this escaping air can condense on cold attic surfaces leading to mold.