White Mold On Rafters In Attic

White mold is commonly found growing on wood surfaces.

White mold on rafters in attic.

White mold is usually found in cool and damp areas such as basement walls. In short you ll need to address the issue again and again which is a great frustration. The vast majority of attic mold is caused by humidity which is why white mold growth is common here. Rafters in the attic floor joists in the basement or crawlspace and wooden furniture are all places where you can find white mold.

It appears white or light gray like a coating of unsettled dust. Attic sheathing and framing. Faulty roof insulation or construction can lead to leaks and a lack of proper ventilation can cause humidity to accumulate. White mold can be confused with efflorescence a mineral deposit caused by water seepage.

If you re ever unsure of what type you have calling in certified professionals to perform mold testing services immediately is important. The attic is basically a crawl space with loose insulation between the ceiling joists. Is it dangerous how to remove it. In the attic photograph at left we show a mix of green gray and white attic mold.

If one encapsulates attic mold with a clear sealant like many mold remediation companies do future home inspectors and homeowners won t have any idea if the visible black white mold staining in the attic is current or historic. 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. White mold tends to grow in high humidity environments rather than areas suffering from total saturation. Closer inspection under good lighting will reveal a fungal growth pattern of spots like tiny mushrooms.

The most common cause of attic mold by far is blocked or insufficient ventilation of the attic space. The mold itself may have a cottony texture but can also be velvety. White mold is lesser known but still an incredibly dangerous species of mold to deal with. White mold penetrates porous surfaces such as wood sheetrock and furniture.

I found approximately 10 percent of the roof rafters covered in spots with a white powdery substance which i assumed to be mold. When looking for attic mold trace both leak. This is why it s less common to see mold growth on base trim after a flooding event. Mold usually causes a musty odor and may cause staining that may be black brown gray white yellow or green.

After reading your article regarding mold i checked out my 36 year old home and found very little except in the attic.