If you have mold covering large sections of sheathing all over the attic the culprit is.
Why does the inside of my attic have mold.
The reason responsible for attic black mold contamination is improperly designed attic ventilation a combination of vents that instead of exchanging the air between exterior and interior they trap create pockets of dead air which condensates on roof decking during the cold season.
It s due to the simple fact that warm air rises.
The stagnant water causes attic mold growth.
Why does attic mold rarely if ever affect indoor air quality in homes.
The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space.
In a house this phenomenon is known as stack effect air rises from the lower levels of the home and up through the attic.
When looking for attic mold trace both leak areas and areas of poor ventilation in the attic.
Mold in the house isn t just a problem for people with allergies or asthma.
There are two main factors that cause condensation.
However attic condensation is evidence of wet or very humid attic conditions.
When attic surfaces or insulation contain a large reservoir of toxic or allergenic mold and if the area were inaccessible say because the space is too small to enter then it may be necessary to remove some portion of roofing to give access for remediation particularly if there is evidence of transmission of problem mold from that space into the living area.
Because the majority of attic mold cases are caused by condensation it means you ll rarely find a smoking gun.
In the attic photograph at left we show a mix of green gray and white attic mold.
Prevent mold and the health problems it causes with these basic tips from the experts at webmd.
If your roof leaks or any attic windows leak you ve got moisture in your attic and probably need to consider attic mold removal.
If the mold appears in localized patches it is likely caused by leaks from windows plumbing or roofs.
Even if your roof and windows don t leak though humidity in the attic can lead to the growth of mold.
The best way to prevent this.
Excessive moisture entering the attic from the attic space below.
Clean your gutters when you re installing your outdoor christmas lights so that winter s rain and melting snow can drain.
Mold in attic is fairly common because attics are often damp.
