White Powder On Wood In Attic

White mold tends to grow in high humidity environments rather than areas suffering from total saturation.

White powder on wood in attic.

But when i would write this up i would indicate suspect mold and it would have to be tested. The white powder wipes off readily with just your hand the vertical line was created by doing this. White mold growth on joist. The best temperatures in which mold grows is between 2 and 40 degrees celsius.

Once the colonies form white molds will appear as white spots on a surface. 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. It is difficult to declare this one substance over another simply based on one s senses of sight or smell. The white powder that you have shown i have seen on many of my inspections i received some feed back from a mold specialist that indicated to me that it was a type of mold that had dried up and offered no harm as long as it was not present in the living areas.

Attic sheathing and framing. As white mold spreads it eats away at the material it is growing on. The client will certainly expect an explanation for this white material on the roof rafters in the attic. Below is a photo of white mold growing on wood rafters in an attic.

Although it can look similar to mildew at first white mold is more harmful since it can grow within organic materials not just at the surface. The spots can be powdery and filmy in nature. Common food sources for white mold include wood drywall carpeting laminate insulation and any other organic carbon rich material. In the attic photograph at left we show a mix of green gray and white attic mold.

After all some mold shows up as a white powdery material but more often in a crawl space than an attic. This is why it s less common to see mold growth on base trim after a flooding event. It is that dry.