The rapid cooling leads to immediate condensation.
Roof sweating in attic.
Excessive indoor humidity can cause blistering and peeling paint warping and rotting wood as well as the formation of mildew mold.
This could be a sign that your excessive indoor humidity is causing damage elsewhere in places you cannot see such as.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Moisture occurs when heated air inside the home rises up to the roof where it meets the colder temperatures of outside air.
If there is excessive moisture accumulation in your attic it will condense on cold areas mainly on the underside of your roof deck.
During the winter months the recommended relative humidity inside a house is anywhere between 30 50 percent.
Roof condensation has a very specific cause.
Fixing this issue can be less costly than replacing a roof but it should be addressed as soon as possible.
In the vast majority of cases the mold growth is caused by condensation.
Most people assume this is caused by a leaking roof but that might not be the source.
Water found in these places is commonly caused by condensation in the attic.
It s no surprise that this tends to occur more in colder months when home heating is more common and intense.
How to stop metal roof sweating condensation dripping very easily cheaply and completely as a do it yourself diy project.