The photo at page top shows white attic mold on the roof sheathing and rafters and some brown or black mold on the attic side of ceiling drywall where we pulled back insulation.
White mildew in attic.
Attics usually have a passive ventilation system in which outside air comes in through the soffit eave vents at the bottom warms up in the attic and escapes through the can or ridge vents at the top because hot air rises.
It thrives in warm dark moist areas and produces a musty odor that clings to everything it touches.
White mold is commonly found growing on wood surfaces.
When looking for attic mold trace both leak areas and areas of poor ventilation in the attic.
If you find mold on wooden furniture many times you can remove it yourself however more porous materials such as cloth on chairs or sofas will need a professional cleaning.
Mix 1 teaspoon of white vinegar or tea tree oil with each cup of water that you need to attack your mold colony.
White mold will look white cottony flakey and stringy and grows on organic materials.
The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space.
Attics contain plenty of food sources for mold including wood and insulation.
In the attic photograph at left we show a mix of green gray and white attic mold.
White mold in attics.
As such roof leaks from rainfall or melting snow condensation resulting from temperature fluctuations and or leaky pipes can give mold the moisture it needs to thrive in attics.
Mildew grows in a thin black or whitish layer on a variety of materials in your attic.